55475025 has 24 divisors (see below), whose sum is σ = 94202304. Its totient is φ = 28785600.

The previous prime is 55474987. The next prime is 55475051. The reversal of 55475025 is 52057455.

It is not a de Polignac number, because 55475025 - 2⁷ = 55474897 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7221 + ... + 12770.

It is an arithmetic number, because the mean of its divisors is an integer number (3925096).

Almost surely, 2^55475025 is an apocalyptic number.

It is an amenable number.

55475025 is a deficient number, since it is larger than the sum of its proper divisors (38727279).

55475025 is a wasteful number, since it uses less digits than its factorization.

55475025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20041 (or 20036 counting only the distinct ones).

The product of its (nonzero) digits is 35000, while the sum is 33.

The square root of 55475025 is about 7448.1558120115. The cubic root of 55475025 is about 381.3869560808.

The spelling of 55475025 in words is "fifty-five million, four hundred seventy-five thousand, twenty-five".