25092012 has 48 divisors (see below), whose sum is σ = 64439424. Its totient is φ = 7598800.

The previous prime is 25091977. The next prime is 25092013. The reversal of 25092012 is 21029052.

It is a hoax number, since the sum of its digits (21) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 25092012.

It is not an unprimeable number, because it can be changed into a prime (25092013) 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, 15187 + ... + 16757.

It is an arithmetic number, because the mean of its divisors is an integer number (1342488).

Almost surely, 2^25092012 is an apocalyptic number.

25092012 is a gapful number since it is divisible by the number (22) 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 25092012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32219712).

25092012 is an abundant number, since it is smaller than the sum of its proper divisors (39347412).

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

25092012 is a wasteful number, since it uses less digits than its factorization.

25092012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1611 (or 1587 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 25092012 is about 5009.1927493360. The cubic root of 25092012 is about 292.7600609175.

The spelling of 25092012 in words is "twenty-five million, ninety-two thousand, twelve".