25252527775 has 12 divisors (see below), whose sum is σ = 31979372832. Its totient is φ = 19772191040.

The previous prime is 25252527767. The next prime is 25252527779. The reversal of 25252527775 is 57772525252.

It is a happy number.

It is not a de Polignac number, because 25252527775 - 2³ = 25252527767 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25252527779) 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, 10744582 + ... + 10746931.

It is an arithmetic number, because the mean of its divisors is an integer number (2664947736).

Almost surely, 2^25252527775 is an apocalyptic number.

25252527775 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

25252527775 is a deficient number, since it is larger than the sum of its proper divisors (6726845057).

25252527775 is a wasteful number, since it uses less digits than its factorization.

25252527775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21491570 (or 21491565 counting only the distinct ones).

The product of its digits is 3430000, while the sum is 49.

The spelling of 25252527775 in words is "twenty-five billion, two hundred fifty-two million, five hundred twenty-seven thousand, seven hundred seventy-five".