421525532579 has 2 divisors, whose sum is σ = 421525532580. Its totient is φ = 421525532578.

The previous prime is 421525532521. The next prime is 421525532621. The reversal of 421525532579 is 975235525124.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 421525532579 - 2²⁴ = 421508755363 is a prime.

It is not a weakly prime, because it can be changed into another prime (421525531579) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210762766289 + 210762766290.

It is an arithmetic number, because the mean of its divisors is an integer number (210762766290).

Almost surely, 2^421525532579 is an apocalyptic number.

421525532579 is a deficient number, since it is larger than the sum of its proper divisors (1).

421525532579 is an equidigital number, since it uses as much as digits as its factorization.

421525532579 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3780000, while the sum is 50.

The spelling of 421525532579 in words is "four hundred twenty-one billion, five hundred twenty-five million, five hundred thirty-two thousand, five hundred seventy-nine".