52207457 has 4 divisors (see below), whose sum is σ = 52299780. Its totient is φ = 52115136.

The previous prime is 52207439. The next prime is 52207487. The reversal of 52207457 is 75470225.

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 18113536 + 34093921 = 4256^2 + 5839^2 .

It is a cyclic number.

It is not a de Polignac number, because 52207457 - 2²⁰ = 51158881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52207487) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45308 + ... + 46445.

It is an arithmetic number, because the mean of its divisors is an integer number (13074945).

Almost surely, 2^52207457 is an apocalyptic number.

It is an amenable number.

52207457 is a deficient number, since it is larger than the sum of its proper divisors (92323).

52207457 is an equidigital number, since it uses as much as digits as its factorization.

52207457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92322.

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

The square root of 52207457 is about 7225.4727872991. The cubic root of 52207457 is about 373.7468259966.

The spelling of 52207457 in words is "fifty-two million, two hundred seven thousand, four hundred fifty-seven".