25516625375 has 16 divisors (see below), whose sum is σ = 31853098368. Its totient is φ = 20407948000.

The previous prime is 25516625369. The next prime is 25516625383. The reversal of 25516625375 is 57352661552.

It is a happy number.

It is not a de Polignac number, because 25516625375 - 2⁶ = 25516625311 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 491930 + ... + 541320.

It is an arithmetic number, because the mean of its divisors is an integer number (1990818648).

Almost surely, 2^25516625375 is an apocalyptic number.

25516625375 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

25516625375 is a deficient number, since it is larger than the sum of its proper divisors (6336472993).

25516625375 is an equidigital number, since it uses as much as digits as its factorization.

25516625375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53539 (or 53529 counting only the distinct ones).

The product of its digits is 1890000, while the sum is 47.

The spelling of 25516625375 in words is "twenty-five billion, five hundred sixteen million, six hundred twenty-five thousand, three hundred seventy-five".