2522531687 has 8 divisors (see below), whose sum is σ = 2732649360. Its totient is φ = 2328488760.

The previous prime is 2522531681. The next prime is 2522531701. The reversal of 2522531687 is 7861352252.

It is not a de Polignac number, because 2522531687 - 2¹⁶ = 2522466151 is a prime.

It is a super-2 number, since 2×2522531687² = 12726332223838131938, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2522531681) 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, 571889 + ... + 576282.

It is an arithmetic number, because the mean of its divisors is an integer number (341581170).

Almost surely, 2^2522531687 is an apocalyptic number.

2522531687 is a deficient number, since it is larger than the sum of its proper divisors (210117673).

2522531687 is an equidigital number, since it uses as much as digits as its factorization.

2522531687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1148210 (or 1148184 counting only the distinct ones).

The product of its digits is 201600, while the sum is 41.

The square root of 2522531687 is about 50224.8114680384. The cubic root of 2522531687 is about 1361.2739804976.

The spelling of 2522531687 in words is "two billion, five hundred twenty-two million, five hundred thirty-one thousand, six hundred eighty-seven".