5257438923 has 16 divisors (see below), whose sum is σ = 7979671296. Its totient is φ = 3047790240.

The previous prime is 5257438867. The next prime is 5257438931. The reversal of 5257438923 is 3298347525.

It is not a de Polignac number, because 5257438923 - 2¹⁸ = 5257176779 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5257438943) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3462640 + ... + 3464157.

It is an arithmetic number, because the mean of its divisors is an integer number (498729456).

Almost surely, 2^5257438923 is an apocalyptic number.

5257438923 is a deficient number, since it is larger than the sum of its proper divisors (2722232373).

5257438923 is a wasteful number, since it uses less digits than its factorization.

5257438923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6926834.

The product of its digits is 1814400, while the sum is 48.

The square root of 5257438923 is about 72508.1990053539. The cubic root of 5257438923 is about 1738.8338205751.

The spelling of 5257438923 in words is "five billion, two hundred fifty-seven million, four hundred thirty-eight thousand, nine hundred twenty-three".