252651387 has 8 divisors (see below), whose sum is σ = 339521536. Its totient is φ = 167107752.

The previous prime is 252651383. The next prime is 252651407. The reversal of 252651387 is 783156252.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 252651387 - 2² = 252651383 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (252651383) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 331183 + ... + 331944.

It is an arithmetic number, because the mean of its divisors is an integer number (42440192).

Almost surely, 2^252651387 is an apocalyptic number.

252651387 is a deficient number, since it is larger than the sum of its proper divisors (86870149).

252651387 is a wasteful number, since it uses less digits than its factorization.

252651387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 663257.

The product of its digits is 100800, while the sum is 39.

The square root of 252651387 is about 15895.0113872246. The cubic root of 252651387 is about 632.1797235956.

The spelling of 252651387 in words is "two hundred fifty-two million, six hundred fifty-one thousand, three hundred eighty-seven".