25066703988 has 48 divisors (see below), whose sum is σ = 65631222720. Its totient is φ = 8272836000.

The previous prime is 25066703957. The next prime is 25066703989. The reversal of 25066703988 is 88930766052.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25066703989) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1138098 + ... + 1159913.

It is an arithmetic number, because the mean of its divisors is an integer number (1367317140).

Almost surely, 2^25066703988 is an apocalyptic number.

It is an amenable number.

25066703988 is an abundant number, since it is smaller than the sum of its proper divisors (40564518732).

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

25066703988 is a wasteful number, since it uses less digits than its factorization.

25066703988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2298125 (or 2298117 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 54.

The spelling of 25066703988 in words is "twenty-five billion, sixty-six million, seven hundred three thousand, nine hundred eighty-eight".