55279525 has 12 divisors (see below), whose sum is σ = 78339232. Its totient is φ = 37905840.

The previous prime is 55279513. The next prime is 55279559. The reversal of 55279525 is 52597255.

It is a de Polignac number, because none of the positive numbers 2^k-55279525 is a prime.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 157767 + ... + 158116.

Almost surely, 2^55279525 is an apocalyptic number.

It is an amenable number.

55279525 is a deficient number, since it is larger than the sum of its proper divisors (23059707).

55279525 is a wasteful number, since it uses less digits than its factorization.

55279525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315900 (or 315895 counting only the distinct ones).

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

The square root of 55279525 is about 7435.0201748213. The cubic root of 55279525 is about 380.9384124404.

The spelling of 55279525 in words is "fifty-five million, two hundred seventy-nine thousand, five hundred twenty-five".