52261225 has 12 divisors (see below), whose sum is σ = 64894284. Its totient is φ = 41750720.

The previous prime is 52261189. The next prime is 52261283. The reversal of 52261225 is 52216225.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 6739216 + 45522009 = 2596^2 + 6747^2 .

It is not a de Polignac number, because 52261225 - 2¹⁵ = 52228457 is a prime.

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

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 52261225.

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, 31107 + ... + 32743.

It is an arithmetic number, because the mean of its divisors is an integer number (5407857).

Almost surely, 2^52261225 is an apocalyptic number.

It is an amenable number.

52261225 is a deficient number, since it is larger than the sum of its proper divisors (12633059).

52261225 is a wasteful number, since it uses less digits than its factorization.

52261225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2924 (or 2919 counting only the distinct ones).

The product of its digits is 2400, while the sum is 25.

The square root of 52261225 is about 7229.1925551890. The cubic root of 52261225 is about 373.8750881624.

The spelling of 52261225 in words is "fifty-two million, two hundred sixty-one thousand, two hundred twenty-five".