5261537523 has 16 divisors (see below), whose sum is σ = 7985892096. Its totient is φ = 3050166240.

The previous prime is 5261537509. The next prime is 5261537557. The reversal of 5261537523 is 3257351625.

It is not a de Polignac number, because 5261537523 - 2⁴ = 5261537507 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5261537563) 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, 3465340 + ... + 3466857.

It is an arithmetic number, because the mean of its divisors is an integer number (499118256).

Almost surely, 2^5261537523 is an apocalyptic number.

5261537523 is a deficient number, since it is larger than the sum of its proper divisors (2724354573).

5261537523 is a wasteful number, since it uses less digits than its factorization.

5261537523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6932234.

The product of its digits is 189000, while the sum is 39.

The square root of 5261537523 is about 72536.4565098131. The cubic root of 5261537523 is about 1739.2855571991.

The spelling of 5261537523 in words is "five billion, two hundred sixty-one million, five hundred thirty-seven thousand, five hundred twenty-three".