55475975 has 6 divisors (see below), whose sum is σ = 68790240. Its totient is φ = 44380760.

The previous prime is 55475971. The next prime is 55475983. The reversal of 55475975 is 57957455.

It is not a de Polignac number, because 55475975 - 2² = 55475971 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55475971) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1109495 + ... + 1109544.

It is an arithmetic number, because the mean of its divisors is an integer number (11465040).

Almost surely, 2^55475975 is an apocalyptic number.

55475975 is a deficient number, since it is larger than the sum of its proper divisors (13314265).

55475975 is a wasteful number, since it uses less digits than its factorization.

55475975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2219049 (or 2219044 counting only the distinct ones).

The product of its digits is 1102500, while the sum is 47.

The square root of 55475975 is about 7448.2195859145. The cubic root of 55475975 is about 381.3891331298.

The spelling of 55475975 in words is "fifty-five million, four hundred seventy-five thousand, nine hundred seventy-five".