252070457 has 4 divisors (see below), whose sum is σ = 254383140. Its totient is φ = 249757776.

The previous prime is 252070453. The next prime is 252070459. The reversal of 252070457 is 754070252.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 187251856 + 64818601 = 13684^2 + 8051^2 .

It is a cyclic number.

It is not a de Polignac number, because 252070457 - 2² = 252070453 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (252070451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1156178 + ... + 1156395.

It is an arithmetic number, because the mean of its divisors is an integer number (63595785).

Almost surely, 2^252070457 is an apocalyptic number.

It is an amenable number.

252070457 is a deficient number, since it is larger than the sum of its proper divisors (2312683).

252070457 is a wasteful number, since it uses less digits than its factorization.

252070457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2312682.

The product of its (nonzero) digits is 19600, while the sum is 32.

The square root of 252070457 is about 15876.7268981991. The cubic root of 252070457 is about 631.6948209136.

The spelling of 252070457 in words is "two hundred fifty-two million, seventy thousand, four hundred fifty-seven".