55512260 has 12 divisors (see below), whose sum is σ = 116575788. Its totient is φ = 22204896.

The previous prime is 55512241. The next prime is 55512287. The reversal of 55512260 is 6221555.

It can be written as a sum of positive squares in 2 ways, for example, as 7929856 + 47582404 = 2816^2 + 6898^2 .

It is a super-2 number, since 2×55512260² = 6163222020615200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1387787 + ... + 1387826.

It is an arithmetic number, because the mean of its divisors is an integer number (9714649).

Almost surely, 2^55512260 is an apocalyptic number.

It is an amenable number.

55512260 is an abundant number, since it is smaller than the sum of its proper divisors (61063528).

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

55512260 is a wasteful number, since it uses less digits than its factorization.

55512260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2775622 (or 2775620 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 26.

The square root of 55512260 is about 7450.6550047630. The cubic root of 55512260 is about 381.4722663458.

The spelling of 55512260 in words is "fifty-five million, five hundred twelve thousand, two hundred sixty".