55501525 has 12 divisors (see below), whose sum is σ = 69065892. Its totient is φ = 44243840.

The previous prime is 55501513. The next prime is 55501531. The reversal of 55501525 is 52510555.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 2604996 + 52896529 = 1614^2 + 7273^2 .

It is not a de Polignac number, because 55501525 - 2⁵ = 55501493 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55501493 and 55501502.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3537 + ... + 11113.

It is an arithmetic number, because the mean of its divisors is an integer number (5755491).

Almost surely, 2^55501525 is an apocalyptic number.

It is an amenable number.

55501525 is a deficient number, since it is larger than the sum of its proper divisors (13564367).

55501525 is a wasteful number, since it uses less digits than its factorization.

55501525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7880 (or 7875 counting only the distinct ones).

The product of its (nonzero) digits is 6250, while the sum is 28.

The square root of 55501525 is about 7449.9345634710. The cubic root of 55501525 is about 381.4476749686.

The spelling of 55501525 in words is "fifty-five million, five hundred one thousand, five hundred twenty-five".