265009992 has 32 divisors (see below), whose sum is σ = 713489280. Its totient is φ = 81541440.

The previous prime is 265009951. The next prime is 265009993. The reversal of 265009992 is 299900562.

It is not an unprimeable number, because it can be changed into a prime (265009993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 424384 + ... + 425007.

It is an arithmetic number, because the mean of its divisors is an integer number (22296540).

Almost surely, 2^265009992 is an apocalyptic number.

It is an amenable number.

265009992 is an abundant number, since it is smaller than the sum of its proper divisors (448479288).

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

265009992 is a wasteful number, since it uses less digits than its factorization.

265009992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 849413 (or 849409 counting only the distinct ones).

The product of its (nonzero) digits is 87480, while the sum is 42.

The square root of 265009992 is about 16279.1274950471. The cubic root of 265009992 is about 642.3239017356.

The spelling of 265009992 in words is "two hundred sixty-five million, nine thousand, nine hundred ninety-two".