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55415900 = 22523471597
BaseRepresentation
bin1101001101100…
…1010001011100
310212021102022202
43103121101130
5103141302100
65255431032
71242012251
oct323312134
9125242282
1055415900
112930a871
1216685478
13b633597
147507428
154ce97d5
hex34d945c

55415900 has 36 divisors (see below), whose sum is σ = 120674568. Its totient is φ = 22088640.

The previous prime is 55415881. The next prime is 55415909. The reversal of 55415900 is 951455.

55415900 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55415909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33902 + ... + 35498.

Almost surely, 255415900 is an apocalyptic number.

55415900 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

55415900 is an abundant number, since it is smaller than the sum of its proper divisors (65258668).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55415900 is a wasteful number, since it uses less digits than its factorization.

55415900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1958 (or 1951 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 29.

The square root of 55415900 is about 7444.1856505598. The cubic root of 55415900 is about 381.2514144891.

The spelling of 55415900 in words is "fifty-five million, four hundred fifteen thousand, nine hundred".

Divisors: 1 2 4 5 10 20 25 50 100 347 694 1388 1597 1735 3194 3470 6388 6940 7985 8675 15970 17350 31940 34700 39925 79850 159700 554159 1108318 2216636 2770795 5541590 11083180 13853975 27707950 55415900