2501562001 has 4 divisors (see below), whose sum is σ = 2501666532. Its totient is φ = 2501457472.

The previous prime is 2501561989. The next prime is 2501562031. The reversal of 2501562001 is 1002651052.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 1082081025 + 1419480976 = 32895^2 + 37676^2 .

It is a cyclic number.

It is not a de Polignac number, because 2501562001 - 2¹¹ = 2501559953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2501562031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3381 + ... + 70813.

It is an arithmetic number, because the mean of its divisors is an integer number (625416633).

Almost surely, 2^2501562001 is an apocalyptic number.

It is an amenable number.

2501562001 is a deficient number, since it is larger than the sum of its proper divisors (104531).

2501562001 is an equidigital number, since it uses as much as digits as its factorization.

2501562001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104530.

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 2501562001 is about 50015.6175709148. The cubic root of 2501562001 is about 1357.4914109843.

The spelling of 2501562001 in words is "two billion, five hundred one million, five hundred sixty-two thousand, one".