25625985238 has 16 divisors (see below), whose sum is σ = 44333292960. Its totient is φ = 10881806976.

The previous prime is 25625985221. The next prime is 25625985239. The reversal of 25625985238 is 83258952652.

It is a super-2 number, since 2×25625985238² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25625985239) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8394931 + ... + 8397982.

It is an arithmetic number, because the mean of its divisors is an integer number (2770830810).

Almost surely, 2^25625985238 is an apocalyptic number.

25625985238 is a deficient number, since it is larger than the sum of its proper divisors (18707307722).

25625985238 is a wasteful number, since it uses less digits than its factorization.

25625985238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16793031.

The product of its digits is 10368000, while the sum is 55.

The spelling of 25625985238 in words is "twenty-five billion, six hundred twenty-five million, nine hundred eighty-five thousand, two hundred thirty-eight".