2500540564 has 6 divisors (see below), whose sum is σ = 4375945994. Its totient is φ = 1250270280.

The previous prime is 2500540547. The next prime is 2500540571. The reversal of 2500540564 is 4650450052.

It can be written as a sum of positive squares in only one way, i.e., 2120602500 + 379938064 = 46050^2 + 19492^2 .

It is a super-2 number, since 2×2500540564² = 12505406224418876192, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 312567567 + ... + 312567574.

Almost surely, 2^2500540564 is an apocalyptic number.

It is an amenable number.

2500540564 is a deficient number, since it is larger than the sum of its proper divisors (1875405430).

2500540564 is a wasteful number, since it uses less digits than its factorization.

2500540564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 625135145 (or 625135143 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 31.

The square root of 2500540564 is about 50005.4053478221. The cubic root of 2500540564 is about 1357.3066223441.

The spelling of 2500540564 in words is "two billion, five hundred million, five hundred forty thousand, five hundred sixty-four".