2491056525 has 12 divisors (see below), whose sum is σ = 4118546912. Its totient is φ = 1328563440.

The previous prime is 2491056517. The next prime is 2491056527. The reversal of 2491056525 is 5256501942.

It is not a de Polignac number, because 2491056525 - 2³ = 2491056517 is a prime.

It is a super-2 number, since 2×2491056525² = 12410725221490151250, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2491056527) 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, 16606969 + ... + 16607118.

Almost surely, 2^2491056525 is an apocalyptic number.

2491056525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2491056525 is a deficient number, since it is larger than the sum of its proper divisors (1627490387).

2491056525 is a wasteful number, since it uses less digits than its factorization.

2491056525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33214100 (or 33214095 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 39.

The square root of 2491056525 is about 49910.4851208641. The cubic root of 2491056525 is about 1355.5884528046.

The spelling of 2491056525 in words is "two billion, four hundred ninety-one million, fifty-six thousand, five hundred twenty-five".