55722512 has 20 divisors (see below), whose sum is σ = 108185040. Its totient is φ = 27803808.

The previous prime is 55722487. The next prime is 55722517. The reversal of 55722512 is 21522755.

It is a super-4 number, since 4×55722512⁴ (a number of 32 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (55722517) 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, 5039 + ... + 11697.

It is an arithmetic number, because the mean of its divisors is an integer number (5409252).

Almost surely, 2^55722512 is an apocalyptic number.

It is an amenable number.

55722512 is a deficient number, since it is larger than the sum of its proper divisors (52462528).

55722512 is a wasteful number, since it uses less digits than its factorization.

55722512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7190 (or 7184 counting only the distinct ones).

The product of its digits is 7000, while the sum is 29.

The square root of 55722512 is about 7464.7513019524. The cubic root of 55722512 is about 381.9532667627.

The spelling of 55722512 in words is "fifty-five million, seven hundred twenty-two thousand, five hundred twelve".