2625013731 has 4 divisors (see below), whose sum is σ = 3500018312. Its totient is φ = 1750009152.

The previous prime is 2625013717. The next prime is 2625013739. The reversal of 2625013731 is 1373105262.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 2625013731 - 2⁷ = 2625013603 is a prime.

It is a super-2 number, since 2×2625013731² = 13781394175877080722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2625013739) 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, 437502286 + ... + 437502291.

It is an arithmetic number, because the mean of its divisors is an integer number (875004578).

Almost surely, 2^2625013731 is an apocalyptic number.

2625013731 is a deficient number, since it is larger than the sum of its proper divisors (875004581).

2625013731 is an equidigital number, since it uses as much as digits as its factorization.

2625013731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 875004580.

The product of its (nonzero) digits is 7560, while the sum is 30.

The square root of 2625013731 is about 51234.8878304618. The cubic root of 2625013731 is about 1379.4644934427.

Adding to 2625013731 its reverse (1373105262), we get a palindrome (3998118993).

The spelling of 2625013731 in words is "two billion, six hundred twenty-five million, thirteen thousand, seven hundred thirty-one".