252047631 has 8 divisors (see below), whose sum is σ = 366614784. Its totient is φ = 152756120.

The previous prime is 252047617. The next prime is 252047687. The reversal of 252047631 is 136740252.

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

It is not a de Polignac number, because 252047631 - 2⁵ = 252047599 is a prime.

It is a super-2 number, since 2×252047631² = 127056016585424322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252047431) 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, 3818871 + ... + 3818936.

It is an arithmetic number, because the mean of its divisors is an integer number (45826848).

Almost surely, 2^252047631 is an apocalyptic number.

252047631 is a deficient number, since it is larger than the sum of its proper divisors (114567153).

252047631 is a wasteful number, since it uses less digits than its factorization.

252047631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7637821.

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 252047631 is about 15876.0080309881. The cubic root of 252047631 is about 631.6757528306.

Adding to 252047631 its reverse (136740252), we get a palindrome (388787883).

The spelling of 252047631 in words is "two hundred fifty-two million, forty-seven thousand, six hundred thirty-one".