55225975 has 48 divisors (see below), whose sum is σ = 82494720. Its totient is φ = 35884800.

The previous prime is 55225957. The next prime is 55225997. The reversal of 55225975 is 57952255.

55225975 = T₄₄₉ + T₄₅₀ + ... + T₇₄₉.

It is not a de Polignac number, because 55225975 - 2⁵ = 55225943 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 308436 + ... + 308614.

It is an arithmetic number, because the mean of its divisors is an integer number (1718640).

Almost surely, 2^55225975 is an apocalyptic number.

55225975 is a deficient number, since it is larger than the sum of its proper divisors (27268745).

55225975 is a wasteful number, since it uses less digits than its factorization.

55225975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280 (or 275 counting only the distinct ones).

The product of its digits is 157500, while the sum is 40.

The square root of 55225975 is about 7431.4181015470. The cubic root of 55225975 is about 380.8153660229.

The spelling of 55225975 in words is "fifty-five million, two hundred twenty-five thousand, nine hundred seventy-five".