52152399 has 12 divisors (see below), whose sum is σ = 81126136. Its totient is φ = 32093712.

The previous prime is 52152391. The next prime is 52152437. The reversal of 52152399 is 99325125.

It is a happy number.

It is not a de Polignac number, because 52152399 - 2³ = 52152391 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52152391) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 222757 + ... + 222990.

Almost surely, 2^52152399 is an apocalyptic number.

52152399 is a deficient number, since it is larger than the sum of its proper divisors (28973737).

52152399 is a wasteful number, since it uses less digits than its factorization.

52152399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 445766 (or 445763 counting only the distinct ones).

The product of its digits is 24300, while the sum is 36.

The square root of 52152399 is about 7221.6617893668. The cubic root of 52152399 is about 373.6153952781.

The spelling of 52152399 in words is "fifty-two million, one hundred fifty-two thousand, three hundred ninety-nine".