52208725 has 6 divisors (see below), whose sum is σ = 64738850. Its totient is φ = 41766960.

The previous prime is 52208719. The next prime is 52208731. The reversal of 52208725 is 52780225.

It is an interprime number because it is at equal distance from previous prime (52208719) and next prime (52208731).

It can be written as a sum of positive squares in 3 ways, for example, as 18173169 + 34035556 = 4263^2 + 5834^2 .

It is not a de Polignac number, because 52208725 - 2¹⁷ = 52077653 is a prime.

It is a super-2 number, since 2×52208725² = 5451501932251250, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1044150 + ... + 1044199.

Almost surely, 2^52208725 is an apocalyptic number.

It is an amenable number.

52208725 is a deficient number, since it is larger than the sum of its proper divisors (12530125).

52208725 is a wasteful number, since it uses less digits than its factorization.

52208725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2088359 (or 2088354 counting only the distinct ones).

The product of its (nonzero) digits is 11200, while the sum is 31.

The square root of 52208725 is about 7225.5605318896. The cubic root of 52208725 is about 373.7498517913.

The spelling of 52208725 in words is "fifty-two million, two hundred eight thousand, seven hundred twenty-five".