55448475625 has 15 divisors (see below), whose sum is σ = 69295772161. Its totient is φ = 44354071000.

The previous prime is 55448475617. The next prime is 55448475631. The reversal of 55448475625 is 52657484455.

It is a happy number.

The square root of 55448475625 is 235475.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 2 ways, for example, as 4347160489 + 51101315136 = 65933^2 + 226056^2 .

It is not a de Polignac number, because 55448475625 - 2³ = 55448475617 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 5882166 + ... + 5891584.

Almost surely, 2^55448475625 is an apocalyptic number.

55448475625 is the 235475-th square number.

55448475625 is the 117738-th centered octagonal number.

It is an amenable number.

55448475625 is a deficient number, since it is larger than the sum of its proper divisors (13847296536).

55448475625 is an frugal number, since it uses more digits than its factorization.

55448475625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18858 (or 9424 counting only the distinct ones).

The product of its digits is 26880000, while the sum is 55.

The spelling of 55448475625 in words is "fifty-five billion, four hundred forty-eight million, four hundred seventy-five thousand, six hundred twenty-five".