55086025 has 6 divisors (see below), whose sum is σ = 68306702. Its totient is φ = 44068800.

The previous prime is 55086023. The next prime is 55086049. The reversal of 55086025 is 52068055.

It can be written as a sum of positive squares in 3 ways, for example, as 1547536 + 53538489 = 1244^2 + 7317^2 .

It is not a de Polignac number, because 55086025 - 2¹ = 55086023 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55086023) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1101696 + ... + 1101745.

Almost surely, 2^55086025 is an apocalyptic number.

It is an amenable number.

55086025 is a deficient number, since it is larger than the sum of its proper divisors (13220677).

55086025 is a wasteful number, since it uses less digits than its factorization.

55086025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2203451 (or 2203446 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 31.

The square root of 55086025 is about 7421.9960253290. The cubic root of 55086025 is about 380.4934149064.

The spelling of 55086025 in words is "fifty-five million, eighty-six thousand, twenty-five".