421525355 has 16 divisors (see below), whose sum is σ = 533066400. Its totient is φ = 319104000.

The previous prime is 421525343. The next prime is 421525373. The reversal of 421525355 is 553525124.

It is not a de Polignac number, because 421525355 - 2⁴ = 421525339 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 103355 + ... + 107355.

It is an arithmetic number, because the mean of its divisors is an integer number (33316650).

Almost surely, 2^421525355 is an apocalyptic number.

421525355 is a deficient number, since it is larger than the sum of its proper divisors (111541045).

421525355 is a wasteful number, since it uses less digits than its factorization.

421525355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5134.

The product of its digits is 30000, while the sum is 32.

The square root of 421525355 is about 20531.0826553302. The cubic root of 421525355 is about 749.7927456958.

The spelling of 421525355 in words is "four hundred twenty-one million, five hundred twenty-five thousand, three hundred fifty-five".