2525630731 has 8 divisors (see below), whose sum is σ = 2726698464. Its totient is φ = 2325532800.

The previous prime is 2525630699. The next prime is 2525630813. The reversal of 2525630731 is 1370365252.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2525630731 - 2⁵ = 2525630699 is a prime.

It is a super-2 number, since 2×2525630731² = 12757621178743188722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2525630831) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 237031 + ... + 247456.

It is an arithmetic number, because the mean of its divisors is an integer number (340837308).

Almost surely, 2^2525630731 is an apocalyptic number.

2525630731 is a deficient number, since it is larger than the sum of its proper divisors (201067733).

2525630731 is a wasteful number, since it uses less digits than its factorization.

2525630731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 484901.

The product of its (nonzero) digits is 37800, while the sum is 34.

The square root of 2525630731 is about 50255.6537217456. The cubic root of 2525630731 is about 1361.8312145338.

Adding to 2525630731 its reverse (1370365252), we get a palindrome (3895995983).

The spelling of 2525630731 in words is "two billion, five hundred twenty-five million, six hundred thirty thousand, seven hundred thirty-one".