52161457 has 8 divisors (see below), whose sum is σ = 55296000. Its totient is φ = 49034304.

The previous prime is 52161427. The next prime is 52161481. The reversal of 52161457 is 75416125.

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 52161457 - 2¹¹ = 52159409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52161427) 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, 20544 + ... + 22942.

It is an arithmetic number, because the mean of its divisors is an integer number (6912000).

Almost surely, 2^52161457 is an apocalyptic number.

It is an amenable number.

52161457 is a deficient number, since it is larger than the sum of its proper divisors (3134543).

52161457 is a wasteful number, since it uses less digits than its factorization.

52161457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3695.

The product of its digits is 8400, while the sum is 31.

The square root of 52161457 is about 7222.2889031110. The cubic root of 52161457 is about 373.6370242757.

The spelling of 52161457 in words is "fifty-two million, one hundred sixty-one thousand, four hundred fifty-seven".