52891157 has 12 divisors (see below), whose sum is σ = 60145260. Its totient is φ = 46421760.

The previous prime is 52891129. The next prime is 52891171. The reversal of 52891157 is 75119825.

It can be written as a sum of positive squares in 2 ways, for example, as 26615281 + 26275876 = 5159^2 + 5126^2 .

It is not a de Polignac number, because 52891157 - 2¹⁶ = 52825621 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 52891157.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52891127) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4028 + ... + 11045.

It is an arithmetic number, because the mean of its divisors is an integer number (5012105).

Almost surely, 2^52891157 is an apocalyptic number.

It is an amenable number.

52891157 is a deficient number, since it is larger than the sum of its proper divisors (7254103).

52891157 is a wasteful number, since it uses less digits than its factorization.

52891157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15124 (or 15113 counting only the distinct ones).

The product of its digits is 25200, while the sum is 38.

The square root of 52891157 is about 7272.6306794722. The cubic root of 52891157 is about 375.3712637214.

It can be divided in two parts, 5289 and 1157, that added together give a palindrome (6446).

The spelling of 52891157 in words is "fifty-two million, eight hundred ninety-one thousand, one hundred fifty-seven".