55233012 has 24 divisors (see below), whose sum is σ = 129082912. Its totient is φ = 18381600.

The previous prime is 55233007. The next prime is 55233043. The reversal of 55233012 is 21033255.

It is a super-2 number, since 2×55233012² = 6101371229184288, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 55233012.

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, 4962 + ... + 11622.

Almost surely, 2^55233012 is an apocalyptic number.

It is an amenable number.

55233012 is an abundant number, since it is smaller than the sum of its proper divisors (73849900).

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

55233012 is a wasteful number, since it uses less digits than its factorization.

55233012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7359 (or 7357 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 21.

The square root of 55233012 is about 7431.8915492625. The cubic root of 55233012 is about 380.8315400782.

Adding to 55233012 its reverse (21033255), we get a palindrome (76266267).

The spelling of 55233012 in words is "fifty-five million, two hundred thirty-three thousand, twelve".