252769621 has 8 divisors (see below), whose sum is σ = 274018304. Its totient is φ = 231778800.

The previous prime is 252769589. The next prime is 252769637. The reversal of 252769621 is 126967252.

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

It is a cyclic number.

It is not a de Polignac number, because 252769621 - 2⁵ = 252769589 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252769661) 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, 62421 + ... + 66346.

It is an arithmetic number, because the mean of its divisors is an integer number (34252288).

Almost surely, 2^252769621 is an apocalyptic number.

It is an amenable number.

252769621 is a deficient number, since it is larger than the sum of its proper divisors (21248683).

252769621 is a wasteful number, since it uses less digits than its factorization.

252769621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128931.

The product of its digits is 90720, while the sum is 40.

The square root of 252769621 is about 15898.7301694192. The cubic root of 252769621 is about 632.2783225409.

The spelling of 252769621 in words is "two hundred fifty-two million, seven hundred sixty-nine thousand, six hundred twenty-one".