25585337238 has 16 divisors (see below), whose sum is σ = 52009538736. Its totient is φ = 8388635040.

The previous prime is 25585337233. The next prime is 25585337251. The reversal of 25585337238 is 83273358552.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25585337233) 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, 34952281 + ... + 34953012.

It is an arithmetic number, because the mean of its divisors is an integer number (3250596171).

Almost surely, 2^25585337238 is an apocalyptic number.

25585337238 is an abundant number, since it is smaller than the sum of its proper divisors (26424201498).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25585337238 is a wasteful number, since it uses less digits than its factorization.

25585337238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69905359.

The product of its digits is 6048000, while the sum is 51.

The spelling of 25585337238 in words is "twenty-five billion, five hundred eighty-five million, three hundred thirty-seven thousand, two hundred thirty-eight".