2521051451025 has 72 divisors (see below), whose sum is σ = 4492659487104. Its totient is φ = 1246691779200.

The previous prime is 2521051450963. The next prime is 2521051451071. The reversal of 2521051451025 is 5201541501252.

It is not a de Polignac number, because 2521051451025 - 2²⁷ = 2520917233297 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 281955 + ... + 2263095.

It is an arithmetic number, because the mean of its divisors is an integer number (62398048432).

Almost surely, 2^{2521051451025} is an apocalyptic number.

2521051451025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2521051451025 is a deficient number, since it is larger than the sum of its proper divisors (1971608036079).

2521051451025 is a wasteful number, since it uses less digits than its factorization.

2521051451025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1981239 (or 1981215 counting only the distinct ones).

The product of its (nonzero) digits is 20000, while the sum is 33.

Adding to 2521051451025 its reverse (5201541501252), we get a palindrome (7722592952277).

The spelling of 2521051451025 in words is "two trillion, five hundred twenty-one billion, fifty-one million, four hundred fifty-one thousand, twenty-five".