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55100552 = 2313529813
BaseRepresentation
bin1101001000110…
…0010010001000
310211200101202012
43102030102020
5103101204202
65244555052
71236230003
oct322142210
9124611665
1055100552
1129114951
1216552a88
13b552ba0
14746453a
154c86152
hex348c488

55100552 has 16 divisors (see below), whose sum is σ = 111260940. Its totient is φ = 25430976.

The previous prime is 55100537. The next prime is 55100557. The reversal of 55100552 is 25500155.

It can be written as a sum of positive squares in 2 ways, for example, as 50495236 + 4605316 = 7106^2 + 2146^2 .

It is not an unprimeable number, because it can be changed into a prime (55100557) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 264803 + ... + 265010.

Almost surely, 255100552 is an apocalyptic number.

55100552 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

55100552 is an abundant number, since it is smaller than the sum of its proper divisors (56160388).

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

55100552 is a wasteful number, since it uses less digits than its factorization.

55100552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 529832 (or 529828 counting only the distinct ones).

The product of its (nonzero) digits is 1250, while the sum is 23.

The square root of 55100552 is about 7422.9746059110. The cubic root of 55100552 is about 380.5268592148.

The spelling of 55100552 in words is "fifty-five million, one hundred thousand, five hundred fifty-two".

Divisors: 1 2 4 8 13 26 52 104 529813 1059626 2119252 4238504 6887569 13775138 27550276 55100552