264520351 has 4 divisors (see below), whose sum is σ = 266205352. Its totient is φ = 262835352.

The previous prime is 264520349. The next prime is 264520367. The reversal of 264520351 is 153025462.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 264520351 - 2¹ = 264520349 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (264520301) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 842265 + ... + 842578.

It is an arithmetic number, because the mean of its divisors is an integer number (66551338).

Almost surely, 2^264520351 is an apocalyptic number.

264520351 is a deficient number, since it is larger than the sum of its proper divisors (1685001).

264520351 is a wasteful number, since it uses less digits than its factorization.

264520351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1685000.

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 264520351 is about 16264.0816217824. The cubic root of 264520351 is about 641.9280650696.

The spelling of 264520351 in words is "two hundred sixty-four million, five hundred twenty thousand, three hundred fifty-one".