2512565040 has 80 divisors (see below), whose sum is σ = 7898708736. Its totient is φ = 660576000.

The previous prime is 2512565009. The next prime is 2512565047. The reversal of 2512565040 is 405652152.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 2512564989 and 2512565007.

It is not an unprimeable number, because it can be changed into a prime (2512565047) 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, 56686 + ... + 90765.

Almost surely, 2^2512565040 is an apocalyptic number.

2512565040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2512565040 is an abundant number, since it is smaller than the sum of its proper divisors (5386143696).

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

2512565040 is a wasteful number, since it uses less digits than its factorization.

2512565040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147538 (or 147532 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 30.

The square root of 2512565040 is about 50125.4929152821. The cubic root of 2512565040 is about 1359.4787939349.

The spelling of 2512565040 in words is "two billion, five hundred twelve million, five hundred sixty-five thousand, forty".