525421864105707 has 32 divisors (see below), whose sum is σ = 738579338956800. Its totient is φ = 331330108852512.

The previous prime is 525421864105609. The next prime is 525421864105711. The reversal of 525421864105707 is 707501468124525.

It is not a de Polignac number, because 525421864105707 - 2¹⁵ = 525421864072939 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is not an unprimeable number, because it can be changed into a prime (525421864105757) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1130526658 + ... + 1130991320.

It is an arithmetic number, because the mean of its divisors is an integer number (23080604342400).

Almost surely, 2^{525421864105707} is an apocalyptic number.

525421864105707 is a gapful number since it is divisible by the number (57) formed by its first and last digit.

525421864105707 is a deficient number, since it is larger than the sum of its proper divisors (213157474851093).

525421864105707 is a wasteful number, since it uses less digits than its factorization.

525421864105707 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 495447.

The product of its (nonzero) digits is 18816000, while the sum is 57.

The spelling of 525421864105707 in words is "five hundred twenty-five trillion, four hundred twenty-one billion, eight hundred sixty-four million, one hundred five thousand, seven hundred seven".