55025020 has 12 divisors (see below), whose sum is σ = 115552584. Its totient is φ = 22010000.

The previous prime is 55025017. The next prime is 55025057. The reversal of 55025020 is 2052055.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1375606 + ... + 1375645.

It is an arithmetic number, because the mean of its divisors is an integer number (9629382).

Almost surely, 2^55025020 is an apocalyptic number.

It is an amenable number.

55025020 is an abundant number, since it is smaller than the sum of its proper divisors (60527564).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55025020 is a wasteful number, since it uses less digits than its factorization.

55025020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2751260 (or 2751258 counting only the distinct ones).

The product of its (nonzero) digits is 500, while the sum is 19.

The square root of 55025020 is about 7417.8851433545. The cubic root of 55025020 is about 380.3529039222.

Adding to 55025020 its reverse (2052055), we get a palindrome (57077075).

The spelling of 55025020 in words is "fifty-five million, twenty-five thousand, twenty".