426291525 has 48 divisors (see below), whose sum is σ = 854320320. Its totient is φ = 206683200.

The previous prime is 426291497. The next prime is 426291527. The reversal of 426291525 is 525192624.

426291525 is a `hidden beast` number, since 4 + 2 + 629 + 1 + 5 + 25 = 666.

It is not a de Polignac number, because 426291525 - 2⁵ = 426291493 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 426291525.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (426291527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 21282 + ... + 36131.

It is an arithmetic number, because the mean of its divisors is an integer number (17798340).

Almost surely, 2^426291525 is an apocalyptic number.

426291525 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

426291525 is an abundant number, since it is smaller than the sum of its proper divisors (428028795).

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

426291525 is a wasteful number, since it uses less digits than its factorization.

426291525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57443 (or 57432 counting only the distinct ones).

The product of its digits is 43200, while the sum is 36.

The square root of 426291525 is about 20646.8284489410. The cubic root of 426291525 is about 752.6081197684.

The spelling of 426291525 in words is "four hundred twenty-six million, two hundred ninety-one thousand, five hundred twenty-five".