52920157 has 8 divisors (see below), whose sum is σ = 54826200. Its totient is φ = 51019584.

The previous prime is 52920137. The next prime is 52920163. The reversal of 52920157 is 75102925.

It can be written as a sum of positive squares in 4 ways, for example, as 2595321 + 50324836 = 1611^2 + 7094^2 .

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

It is not a de Polignac number, because 52920157 - 2¹¹ = 52918109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52920107) 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, 36319 + ... + 37747.

It is an arithmetic number, because the mean of its divisors is an integer number (6853275).

Almost surely, 2^52920157 is an apocalyptic number.

It is an amenable number.

52920157 is a deficient number, since it is larger than the sum of its proper divisors (1906043).

52920157 is a wasteful number, since it uses less digits than its factorization.

52920157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2735.

The product of its (nonzero) digits is 6300, while the sum is 31.

The square root of 52920157 is about 7274.6241827327. The cubic root of 52920157 is about 375.4398560176.

The spelling of 52920157 in words is "fifty-two million, nine hundred twenty thousand, one hundred fifty-seven".