252211057 has 8 divisors (see below), whose sum is σ = 298180800. Its totient is φ = 208726224.

The previous prime is 252211033. The next prime is 252211061. The reversal of 252211057 is 750112252.

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

It is a de Polignac number, because none of the positive numbers 2^k-252211057 is a prime.

It is a super-2 number, since 2×252211057² = 127220834546114498, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (252211457) 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, 621007 + ... + 621412.

It is an arithmetic number, because the mean of its divisors is an integer number (37272600).

Almost surely, 2^252211057 is an apocalyptic number.

It is an amenable number.

252211057 is a deficient number, since it is larger than the sum of its proper divisors (45969743).

252211057 is a wasteful number, since it uses less digits than its factorization.

252211057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1242455.

The product of its (nonzero) digits is 1400, while the sum is 25.

The square root of 252211057 is about 15881.1541457162. The cubic root of 252211057 is about 631.8122481132.

The spelling of 252211057 in words is "two hundred fifty-two million, two hundred eleven thousand, fifty-seven".