52555025 has 6 divisors (see below), whose sum is σ = 65168262. Its totient is φ = 42044000.

The previous prime is 52555021. The next prime is 52555031. The reversal of 52555025 is 52055525.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 1803649 + 50751376 = 1343^2 + 7124^2 .

It is not a de Polignac number, because 52555025 - 2² = 52555021 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (52555021) 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, 1051076 + ... + 1051125.

It is an arithmetic number, because the mean of its divisors is an integer number (10861377).

Almost surely, 2^52555025 is an apocalyptic number.

It is an amenable number.

52555025 is a deficient number, since it is larger than the sum of its proper divisors (12613237).

52555025 is a wasteful number, since it uses less digits than its factorization.

52555025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2102211 (or 2102206 counting only the distinct ones).

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

The square root of 52555025 is about 7249.4844644292. The cubic root of 52555025 is about 374.5743912092.

Subtracting from 52555025 its reverse (52055525), we obtain a triangular number (499500 = T₉₉₉).

The spelling of 52555025 in words is "fifty-two million, five hundred fifty-five thousand, twenty-five".