55520572 has 24 divisors (see below), whose sum is σ = 105661584. Its totient is φ = 25420032.

The previous prime is 55520557. The next prime is 55520573. The reversal of 55520572 is 27502555.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55520573) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8518 + ... + 13549.

It is an arithmetic number, because the mean of its divisors is an integer number (4402566).

Almost surely, 2^55520572 is an apocalyptic number.

It is an amenable number.

55520572 is a deficient number, since it is larger than the sum of its proper divisors (50141012).

55520572 is a wasteful number, since it uses less digits than its factorization.

55520572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22125 (or 22123 counting only the distinct ones).

The product of its (nonzero) digits is 17500, while the sum is 31.

The square root of 55520572 is about 7451.2127871911. The cubic root of 55520572 is about 381.4913050185.

The spelling of 55520572 in words is "fifty-five million, five hundred twenty thousand, five hundred seventy-two".