2501561802 has 24 divisors (see below), whose sum is σ = 5169732768. Its totient is φ = 806953560.

The previous prime is 2501561801. The next prime is 2501561813. The reversal of 2501561802 is 2081651052.

2501561802 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2501561802² = 12515622898450974408, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2501561802.

It is not an unprimeable number, because it can be changed into a prime (2501561801) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 211158 + ... + 222689.

It is an arithmetic number, because the mean of its divisors is an integer number (215405532).

Almost surely, 2^2501561802 is an apocalyptic number.

2501561802 is an abundant number, since it is smaller than the sum of its proper divisors (2668170966).

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

2501561802 is a wasteful number, since it uses less digits than its factorization.

2501561802 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 433914 (or 433883 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 30.

The square root of 2501561802 is about 50015.6155815361. The cubic root of 2501561802 is about 1357.4913749880.

The spelling of 2501561802 in words is "two billion, five hundred one million, five hundred sixty-one thousand, eight hundred two".