25442514226 has 4 divisors (see below), whose sum is σ = 38163771342. Its totient is φ = 12721257112.

The previous prime is 25442514193. The next prime is 25442514247. The reversal of 25442514226 is 62241524452.

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

It can be written as a sum of positive squares in only one way, i.e., 25392741201 + 49773025 = 159351^2 + 7055^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6360628555 + ... + 6360628558.

Almost surely, 2^25442514226 is an apocalyptic number.

25442514226 is a deficient number, since it is larger than the sum of its proper divisors (12721257116).

25442514226 is a wasteful number, since it uses less digits than its factorization.

25442514226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12721257115.

The product of its digits is 153600, while the sum is 37.

The spelling of 25442514226 in words is "twenty-five billion, four hundred forty-two million, five hundred fourteen thousand, two hundred twenty-six".