55102525 has 24 divisors (see below), whose sum is σ = 72752040. Its totient is φ = 41256960.

The previous prime is 55102511. The next prime is 55102543. The reversal of 55102525 is 52520155.

It is a happy number.

55102525 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 12 ways, for example, as 9012004 + 46090521 = 3002^2 + 6789^2 .

It is not a de Polignac number, because 55102525 - 2⁵ = 55102493 is a prime.

It is a super-2 number, since 2×55102525² = 6072576522751250, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a self number, because there is not a number n which added to its sum of digits gives 55102525.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 134521 + ... + 134929.

It is an arithmetic number, because the mean of its divisors is an integer number (3031335).

Almost surely, 2^55102525 is an apocalyptic number.

It is an amenable number.

55102525 is a deficient number, since it is larger than the sum of its proper divisors (17649515).

55102525 is a wasteful number, since it uses less digits than its factorization.

55102525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 753 (or 748 counting only the distinct ones).

The product of its (nonzero) digits is 2500, while the sum is 25.

The square root of 55102525 is about 7423.1075029263. The cubic root of 55102525 is about 380.5314010358.

The spelling of 55102525 in words is "fifty-five million, one hundred two thousand, five hundred twenty-five".