25393725582 has 16 divisors (see below), whose sum is σ = 50792604240. Its totient is φ = 8463716352.

The previous prime is 25393725569. The next prime is 25393725589. The reversal of 25393725582 is 28552739352.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25393725589) 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, 149107 + ... + 270222.

It is an arithmetic number, because the mean of its divisors is an integer number (3174537765).

Almost surely, 2^25393725582 is an apocalyptic number.

25393725582 is an abundant number, since it is smaller than the sum of its proper divisors (25398878658).

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

25393725582 is a wasteful number, since it uses less digits than its factorization.

25393725582 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 429427.

The product of its digits is 4536000, while the sum is 51.

The spelling of 25393725582 in words is "twenty-five billion, three hundred ninety-three million, seven hundred twenty-five thousand, five hundred eighty-two".