265256992 has 192 divisors, whose sum is σ = 719712000. Its totient is φ = 95397120.

The previous prime is 265256977. The next prime is 265256993. The reversal of 265256992 is 299652562.

It is a super-2 number, since 2×265256992² = 140722543609776128, which contains 22 as substring.

Its product of digits (583200) is a multiple of the sum of its prime factors (81).

It is not an unprimeable number, because it can be changed into a prime (265256993) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20404378 + ... + 20404390.

It is an arithmetic number, because the mean of its divisors is an integer number (3748500).

Almost surely, 2^265256992 is an apocalyptic number.

265256992 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 265256992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (359856000).

265256992 is an abundant number, since it is smaller than the sum of its proper divisors (454455008).

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

265256992 is an equidigital number, since it uses as much as digits as its factorization.

265256992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81 (or 33 counting only the distinct ones).

The product of its digits is 583200, while the sum is 46.

The square root of 265256992 is about 16286.7121298315. The cubic root of 265256992 is about 642.5233970293.

The spelling of 265256992 in words is "two hundred sixty-five million, two hundred fifty-six thousand, nine hundred ninety-two".