25075787040 has 72 divisors (see below), whose sum is σ = 85571128188. Its totient is φ = 6686876160.

The previous prime is 25075787027. The next prime is 25075787041. The reversal of 25075787040 is 4078757052.

25075787040 is a `hidden beast` number, since 2 + 5 + 0 + 7 + 578 + 70 + 4 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 24738256656 + 337530384 = 157284^2 + 18372^2 .

It is a tau number, because it is divible by the number of its divisors (72).

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 (25075787041) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8705431 + ... + 8708310.

Almost surely, 2^25075787040 is an apocalyptic number.

25075787040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25075787040 is an abundant number, since it is smaller than the sum of its proper divisors (60495341148).

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

25075787040 is a wasteful number, since it uses less digits than its factorization.

25075787040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17413762 (or 17413751 counting only the distinct ones).

The product of its (nonzero) digits is 548800, while the sum is 45.

The spelling of 25075787040 in words is "twenty-five billion, seventy-five million, seven hundred eighty-seven thousand, forty".