25264992 has 96 divisors (see below), whose sum is σ = 71360352. Its totient is φ = 7798784.

The previous prime is 25264961. The next prime is 25264997. The reversal of 25264992 is 29946252.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-3 number, since 3×25264992³ (a number of 23 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 25264992.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25264997) 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, 184348 + ... + 184484.

It is an arithmetic number, because the mean of its divisors is an integer number (743337).

Almost surely, 2^25264992 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25264992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35680176).

25264992 is an abundant number, since it is smaller than the sum of its proper divisors (46095360).

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

25264992 is a wasteful number, since it uses less digits than its factorization.

25264992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280 (or 272 counting only the distinct ones).

The product of its digits is 77760, while the sum is 39.

The square root of 25264992 is about 5026.4293489514. The cubic root of 25264992 is about 293.4312666572.

The spelling of 25264992 in words is "twenty-five million, two hundred sixty-four thousand, nine hundred ninety-two".