55529012 has 24 divisors (see below), whose sum is σ = 121154880. Its totient is φ = 21634560.

The previous prime is 55528999. The next prime is 55529027. The reversal of 55529012 is 21092555.

It is a super-2 number, since 2×55529012² = 6166942347392288, which contains 22 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, 89837 + ... + 90452.

It is an arithmetic number, because the mean of its divisors is an integer number (5048120).

Almost surely, 2^55529012 is an apocalyptic number.

It is an amenable number.

55529012 is an abundant number, since it is smaller than the sum of its proper divisors (65625868).

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

55529012 is a wasteful number, since it uses less digits than its factorization.

55529012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180311 (or 180309 counting only the distinct ones).

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

The square root of 55529012 is about 7451.7791164258. The cubic root of 55529012 is about 381.5106349314.

The spelling of 55529012 in words is "fifty-five million, five hundred twenty-nine thousand, twelve".