25501224022 has 4 divisors (see below), whose sum is σ = 38251836036. Its totient is φ = 12750612010.

The previous prime is 25501224013. The next prime is 25501224031. The reversal of 25501224022 is 22042210552.

25501224022 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

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

It is an interprime number because it is at equal distance from previous prime (25501224013) and next prime (25501224031).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6375306004 + ... + 6375306007.

It is an arithmetic number, because the mean of its divisors is an integer number (9562959009).

Almost surely, 2^25501224022 is an apocalyptic number.

25501224022 is a deficient number, since it is larger than the sum of its proper divisors (12750612014).

25501224022 is a wasteful number, since it uses less digits than its factorization.

25501224022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12750612013.

The product of its (nonzero) digits is 3200, while the sum is 25.

Adding to 25501224022 its reverse (22042210552), we get a palindrome (47543434574).

The spelling of 25501224022 in words is "twenty-five billion, five hundred one million, two hundred twenty-four thousand, twenty-two".