25467621157 has 16 divisors (see below), whose sum is σ = 29009534400. Its totient is φ = 22145079040.

The previous prime is 25467621143. The next prime is 25467621163. The reversal of 25467621157 is 75112676452.

It is a cyclic number.

It is not a de Polignac number, because 25467621157 - 2¹¹ = 25467619109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25467621167) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 338932 + ... + 407197.

It is an arithmetic number, because the mean of its divisors is an integer number (1813095900).

Almost surely, 2^25467621157 is an apocalyptic number.

It is an amenable number.

25467621157 is a deficient number, since it is larger than the sum of its proper divisors (3541913243).

25467621157 is a wasteful number, since it uses less digits than its factorization.

25467621157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 746276.

The product of its digits is 705600, while the sum is 46.

The spelling of 25467621157 in words is "twenty-five billion, four hundred sixty-seven million, six hundred twenty-one thousand, one hundred fifty-seven".