25087739040 has 576 divisors, whose sum is σ = 108686188800. Its totient is φ = 5292158976.

The previous prime is 25087738979. The next prime is 25087739041. The reversal of 25087739040 is 4093778052.

25087739040 is a `hidden beast` number, since 2 + 508 + 77 + 39 + 0 + 40 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (25087739041) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 5108106 + ... + 5113014.

It is an arithmetic number, because the mean of its divisors is an integer number (188691300).

Almost surely, 2^25087739040 is an apocalyptic number.

25087739040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25087739040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54343094400).

25087739040 is an abundant number, since it is smaller than the sum of its proper divisors (83598449760).

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

25087739040 is a wasteful number, since it uses less digits than its factorization.

25087739040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4966 (or 4939 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 45.

The spelling of 25087739040 in words is "twenty-five billion, eighty-seven million, seven hundred thirty-nine thousand, forty".