25201992 has 16 divisors (see below), whose sum is σ = 63005040. Its totient is φ = 8400656.

The previous prime is 25201987. The next prime is 25201993. The reversal of 25201992 is 29910252.

It is not an unprimeable number, because it can be changed into a prime (25201993) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 525018 + ... + 525065.

It is an arithmetic number, because the mean of its divisors is an integer number (3937815).

Almost surely, 2^25201992 is an apocalyptic number.

It is an amenable number.

25201992 is an abundant number, since it is smaller than the sum of its proper divisors (37803048).

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

25201992 is a wasteful number, since it uses less digits than its factorization.

25201992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1050092 (or 1050088 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 30.

The square root of 25201992 is about 5020.1585632328. The cubic root of 25201992 is about 293.1871666177.

The spelling of 25201992 in words is "twenty-five million, two hundred one thousand, nine hundred ninety-two".