25407714157 has 32 divisors (see below), whose sum is σ = 31390467840. Its totient is φ = 20069744640.

The previous prime is 25407714133. The next prime is 25407714209. The reversal of 25407714157 is 75141770452.

It is a cyclic number.

It is not a de Polignac number, because 25407714157 - 2⁷ = 25407714029 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25407714127) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1797357 + ... + 1811437.

It is an arithmetic number, because the mean of its divisors is an integer number (980952120).

Almost surely, 2^25407714157 is an apocalyptic number.

It is an amenable number.

25407714157 is a deficient number, since it is larger than the sum of its proper divisors (5982753683).

25407714157 is a wasteful number, since it uses less digits than its factorization.

25407714157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14421.

The product of its (nonzero) digits is 274400, while the sum is 43.

The spelling of 25407714157 in words is "twenty-five billion, four hundred seven million, seven hundred fourteen thousand, one hundred fifty-seven".