25650274955 has 4 divisors (see below), whose sum is σ = 30780329952. Its totient is φ = 20520219960.

The previous prime is 25650274921. The next prime is 25650274967. The reversal of 25650274955 is 55947205652.

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

It is not a de Polignac number, because 25650274955 - 2¹² = 25650270859 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2565027491 + ... + 2565027500.

It is an arithmetic number, because the mean of its divisors is an integer number (7695082488).

Almost surely, 2^25650274955 is an apocalyptic number.

25650274955 is a deficient number, since it is larger than the sum of its proper divisors (5130054997).

25650274955 is an equidigital number, since it uses as much as digits as its factorization.

25650274955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5130054996.

The product of its (nonzero) digits is 3780000, while the sum is 50.

The spelling of 25650274955 in words is "twenty-five billion, six hundred fifty million, two hundred seventy-four thousand, nine hundred fifty-five".