2501851025 has 12 divisors (see below), whose sum is σ = 3209271900. Its totient is φ = 1932463680.

The previous prime is 2501851021. The next prime is 2501851043. The reversal of 2501851025 is 5201581052.

It can be written as a sum of positive squares in 6 ways, for example, as 604028929 + 1897822096 = 24577^2 + 43564^2 .

It is not a de Polignac number, because 2501851025 - 2² = 2501851021 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is not an unprimeable number, because it can be changed into a prime (2501851021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1724690 + ... + 1726139.

It is an arithmetic number, because the mean of its divisors is an integer number (267439325).

Almost surely, 2^2501851025 is an apocalyptic number.

2501851025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2501851025 is a deficient number, since it is larger than the sum of its proper divisors (707420875).

2501851025 is a wasteful number, since it uses less digits than its factorization.

2501851025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3450868 (or 3450863 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 29.

The square root of 2501851025 is about 50018.5068249743. The cubic root of 2501851025 is about 1357.5436893192.

The spelling of 2501851025 in words is "two billion, five hundred one million, eight hundred fifty-one thousand, twenty-five".