25552552751 has 4 divisors (see below), whose sum is σ = 27875512104. Its totient is φ = 23229593400.

The previous prime is 25552552717. The next prime is 25552552783. The reversal of 25552552751 is 15725525552.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25552552751 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25552552951) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1161479660 + ... + 1161479681.

It is an arithmetic number, because the mean of its divisors is an integer number (6968878026).

Almost surely, 2^25552552751 is an apocalyptic number.

25552552751 is a deficient number, since it is larger than the sum of its proper divisors (2322959353).

25552552751 is a wasteful number, since it uses less digits than its factorization.

25552552751 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2322959352.

The product of its digits is 875000, while the sum is 44.

The spelling of 25552552751 in words is "twenty-five billion, five hundred fifty-two million, five hundred fifty-two thousand, seven hundred fifty-one".