5231557 has 4 divisors (see below), whose sum is σ = 5459040. Its totient is φ = 5004076.

The previous prime is 5231537. The next prime is 5231579. The reversal of 5231557 is 7551325.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 5231557 - 2¹⁵ = 5198789 is a prime.

It is a Duffinian number.

5231557 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5231537) 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, 113707 + ... + 113752.

It is an arithmetic number, because the mean of its divisors is an integer number (1364760).

Almost surely, 2^5231557 is an apocalyptic number.

It is an amenable number.

5231557 is a deficient number, since it is larger than the sum of its proper divisors (227483).

5231557 is a wasteful number, since it uses less digits than its factorization.

5231557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227482.

The product of its digits is 5250, while the sum is 28.

The square root of 5231557 is about 2287.2597141558. The cubic root of 5231557 is about 173.5975748598.

It can be divided in two parts, 523 and 1557, that added together give a triangular number (2080 = T₆₄).

The spelling of 5231557 in words is "five million, two hundred thirty-one thousand, five hundred fifty-seven".