2516525451 has 36 divisors (see below), whose sum is σ = 4000740016. Its totient is φ = 1523158560.

The previous prime is 2516525399. The next prime is 2516525497. The reversal of 2516525451 is 1545256152.

2516525451 is a `hidden beast` number, since 2 + 51 + 65 + 2 + 545 + 1 = 666.

It is not a de Polignac number, because 2516525451 - 2⁶ = 2516525387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2516525051) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1574985 + ... + 1576581.

Almost surely, 2^2516525451 is an apocalyptic number.

2516525451 is a deficient number, since it is larger than the sum of its proper divisors (1484214565).

2516525451 is a wasteful number, since it uses less digits than its factorization.

2516525451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3072 (or 3058 counting only the distinct ones).

The product of its digits is 60000, while the sum is 36.

The square root of 2516525451 is about 50164.9823183463. The cubic root of 2516525451 is about 1360.1927082389.

The spelling of 2516525451 in words is "two billion, five hundred sixteen million, five hundred twenty-five thousand, four hundred fifty-one".