25530041551 has 12 divisors (see below), whose sum is σ = 29987087088. Its totient is φ = 21291455232.

The previous prime is 25530041527. The next prime is 25530041597. The reversal of 25530041551 is 15514003552.

It is not a de Polignac number, because 25530041551 - 2⁵ = 25530041519 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25530041051) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1322466 + ... + 1341631.

It is an arithmetic number, because the mean of its divisors is an integer number (2498923924).

Almost surely, 2^25530041551 is an apocalyptic number.

25530041551 is a deficient number, since it is larger than the sum of its proper divisors (4457045537).

25530041551 is an equidigital number, since it uses as much as digits as its factorization.

25530041551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2664178 (or 2664141 counting only the distinct ones).

The product of its (nonzero) digits is 15000, while the sum is 31.

The spelling of 25530041551 in words is "twenty-five billion, five hundred thirty million, forty-one thousand, five hundred fifty-one".