25530516454757 has 4 divisors (see below), whose sum is σ = 25530544247616. Its totient is φ = 25530488661900.

The previous prime is 25530516454711. The next prime is 25530516454771. The reversal of 25530516454757 is 75745461503552.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 25530516454757 - 2¹⁴ = 25530516438373 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25530516454696 and 25530516454705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25530516454057) 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, 12469703 + ... + 14372004.

It is an arithmetic number, because the mean of its divisors is an integer number (6382636061904).

Almost surely, 2^{25530516454757} is an apocalyptic number.

It is an amenable number.

25530516454757 is a deficient number, since it is larger than the sum of its proper divisors (27792859).

25530516454757 is an equidigital number, since it uses as much as digits as its factorization.

25530516454757 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27792858.

The product of its (nonzero) digits is 88200000, while the sum is 59.

The spelling of 25530516454757 in words is "twenty-five trillion, five hundred thirty billion, five hundred sixteen million, four hundred fifty-four thousand, seven hundred fifty-seven".