2525607665251 has 8 divisors (see below), whose sum is σ = 2765450775600. Its totient is φ = 2287471623840.

The previous prime is 2525607665173. The next prime is 2525607665261. The reversal of 2525607665251 is 1525667065252.

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 2525607665251 - 2²¹ = 2525605568099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2525607665261) 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, 426764136 + ... + 426770053.

It is an arithmetic number, because the mean of its divisors is an integer number (345681346950).

Almost surely, 2^{2525607665251} is an apocalyptic number.

2525607665251 is a deficient number, since it is larger than the sum of its proper divisors (239843110349).

2525607665251 is a wasteful number, since it uses less digits than its factorization.

2525607665251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 853534469.

The product of its (nonzero) digits is 7560000, while the sum is 52.

The spelling of 2525607665251 in words is "two trillion, five hundred twenty-five billion, six hundred seven million, six hundred sixty-five thousand, two hundred fifty-one".