264525990 has 32 divisors (see below), whose sum is σ = 662466816. Its totient is φ = 67473120.

The previous prime is 264525979. The next prime is 264525991. The reversal of 264525990 is 99525462.

264525990 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×264525990³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (264525991) 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, 190996 + ... + 192375.

It is an arithmetic number, because the mean of its divisors is an integer number (20702088).

Almost surely, 2^264525990 is an apocalyptic number.

264525990 is an abundant number, since it is smaller than the sum of its proper divisors (397940826).

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

264525990 is a wasteful number, since it uses less digits than its factorization.

264525990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 383404.

The product of its (nonzero) digits is 194400, while the sum is 42.

The square root of 264525990 is about 16264.2549783259. The cubic root of 264525990 is about 641.9326265417.

The spelling of 264525990 in words is "two hundred sixty-four million, five hundred twenty-five thousand, nine hundred ninety".