2512154122551 has 24 divisors (see below), whose sum is σ = 3823150880640. Its totient is φ = 1585169254800.

The previous prime is 2512154122493. The next prime is 2512154122559. The reversal of 2512154122551 is 1552214512152.

2512154122551 is a `hidden beast` number, since 2 + 5 + 1 + 215 + 412 + 25 + 5 + 1 = 666.

It is not a de Polignac number, because 2512154122551 - 2³⁴ = 2494974253367 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2512154122559) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6546235 + ... + 6919356.

It is an arithmetic number, because the mean of its divisors is an integer number (159297953360).

Almost surely, 2^{2512154122551} is an apocalyptic number.

2512154122551 is a deficient number, since it is larger than the sum of its proper divisors (1310996758089).

2512154122551 is a wasteful number, since it uses less digits than its factorization.

2512154122551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13466707 (or 13466704 counting only the distinct ones).

The product of its digits is 40000, while the sum is 36.

The spelling of 2512154122551 in words is "two trillion, five hundred twelve billion, one hundred fifty-four million, one hundred twenty-two thousand, five hundred fifty-one".