52494857 has 4 divisors (see below), whose sum is σ = 53485380. Its totient is φ = 51504336.

The previous prime is 52494847. The next prime is 52494859. The reversal of 52494857 is 75849425.

It is a happy number.

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 38738176 + 13756681 = 6224^2 + 3709^2 .

It is a cyclic number.

It is not a de Polignac number, because 52494857 - 2²⁴ = 35717641 is a prime.

It is a super-2 number, since 2×52494857² = 5511420022900898, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52494859) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 495182 + ... + 495287.

It is an arithmetic number, because the mean of its divisors is an integer number (13371345).

Almost surely, 2^52494857 is an apocalyptic number.

It is an amenable number.

52494857 is a deficient number, since it is larger than the sum of its proper divisors (990523).

52494857 is an equidigital number, since it uses as much as digits as its factorization.

52494857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 990522.

The product of its digits is 403200, while the sum is 44.

The square root of 52494857 is about 7245.3334636854. Note that the first 3 decimals coincide. The cubic root of 52494857 is about 374.4313918916.

The spelling of 52494857 in words is "fifty-two million, four hundred ninety-four thousand, eight hundred fifty-seven".