25214620450 has 24 divisors (see below), whose sum is σ = 47050024320. Its totient is φ = 10053411600.

The previous prime is 25214620447. The next prime is 25214620499. The reversal of 25214620450 is 5402641252.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 795210 + ... + 826309.

It is an arithmetic number, because the mean of its divisors is an integer number (1960417680).

Almost surely, 2^25214620450 is an apocalyptic number.

25214620450 is a deficient number, since it is larger than the sum of its proper divisors (21835403870).

25214620450 is a wasteful number, since it uses less digits than its factorization.

25214620450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1621842 (or 1621837 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 31.

The spelling of 25214620450 in words is "twenty-five billion, two hundred fourteen million, six hundred twenty thousand, four hundred fifty".