2500642536 has 64 divisors (see below), whose sum is σ = 7153006080. Its totient is φ = 713638080.

The previous prime is 2500642531. The next prime is 2500642553. The reversal of 2500642536 is 6352460052.

It is a super-2 number, since 2×2500642536² = 12506426185705022592, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2500642497 and 2500642506.

It is not an unprimeable number, because it can be changed into a prime (2500642531) 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, 144171 + ... + 160581.

It is an arithmetic number, because the mean of its divisors is an integer number (111765720).

Almost surely, 2^2500642536 is an apocalyptic number.

It is an amenable number.

2500642536 is an abundant number, since it is smaller than the sum of its proper divisors (4652363544).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2500642536 is a wasteful number, since it uses less digits than its factorization.

2500642536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17334 (or 17330 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 33.

The square root of 2500642536 is about 50006.4249472005. The cubic root of 2500642536 is about 1357.3250724067.

The spelling of 2500642536 in words is "two billion, five hundred million, six hundred forty-two thousand, five hundred thirty-six".