55523225 has 24 divisors (see below), whose sum is σ = 74266080. Its totient is φ = 41040000.

The previous prime is 55523203. The next prime is 55523227. The reversal of 55523225 is 52232555.

It is a de Polignac number, because none of the positive numbers 2^k-55523225 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55523227) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18050 + ... + 20900.

It is an arithmetic number, because the mean of its divisors is an integer number (3094420).

Almost surely, 2^55523225 is an apocalyptic number.

It is an amenable number.

55523225 is a deficient number, since it is larger than the sum of its proper divisors (18742855).

55523225 is a wasteful number, since it uses less digits than its factorization.

55523225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2921 (or 2916 counting only the distinct ones).

The product of its digits is 15000, while the sum is 29.

The square root of 55523225 is about 7451.3908097750. The cubic root of 55523225 is about 381.4973813266.

The spelling of 55523225 in words is "fifty-five million, five hundred twenty-three thousand, two hundred twenty-five".