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55383685 = 571582391
BaseRepresentation
bin1101001101000…
…1011010000101
310212012210010121
43103101122011
5103134234220
65255021541
71241516320
oct323213205
9125183117
1055383685
1129298645
121666a8b1
13b621a16
1474d97b7
154cdeeaa
hex34d1685

55383685 has 8 divisors (see below), whose sum is σ = 75954816. Its totient is φ = 37977360.

The previous prime is 55383667. The next prime is 55383703. The reversal of 55383685 is 58638355.

It is an interprime number because it is at equal distance from previous prime (55383667) and next prime (55383703).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 55383685 - 213 = 55375493 is a prime.

It is a super-3 number, since 3×553836853 (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 791161 + ... + 791230.

It is an arithmetic number, because the mean of its divisors is an integer number (9494352).

Almost surely, 255383685 is an apocalyptic number.

It is an amenable number.

55383685 is a deficient number, since it is larger than the sum of its proper divisors (20571131).

55383685 is a wasteful number, since it uses less digits than its factorization.

55383685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1582403.

The product of its digits is 432000, while the sum is 43.

The square root of 55383685 is about 7442.0215667519. The cubic root of 55383685 is about 381.1775223687.

The spelling of 55383685 in words is "fifty-five million, three hundred eighty-three thousand, six hundred eighty-five".

Divisors: 1 5 7 35 1582391 7911955 11076737 55383685