55255025 has 12 divisors (see below), whose sum is σ = 78304512. Its totient is φ = 37889040.

The previous prime is 55255019. The next prime is 55255061. The reversal of 55255025 is 52055255.

It is a happy number.

It is not a de Polignac number, because 55255025 - 2¹⁴ = 55238641 is a prime.

It is a Duffinian 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, 157697 + ... + 158046.

It is an arithmetic number, because the mean of its divisors is an integer number (6525376).

Almost surely, 2^55255025 is an apocalyptic number.

It is an amenable number.

55255025 is a deficient number, since it is larger than the sum of its proper divisors (23049487).

55255025 is a wasteful number, since it uses less digits than its factorization.

55255025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 315760 (or 315755 counting only the distinct ones).

The product of its (nonzero) digits is 12500, while the sum is 29.

The square root of 55255025 is about 7433.3723840529. The cubic root of 55255025 is about 380.8821265598.

The spelling of 55255025 in words is "fifty-five million, two hundred fifty-five thousand, twenty-five".