421125024450525 has 24 divisors (see below), whose sum is σ = 696267565324320. Its totient is φ = 224597585653440.

The previous prime is 421125024450499. The next prime is 421125024450547. The reversal of 421125024450525 is 525054420521124.

It is not a de Polignac number, because 421125024450525 - 2²² = 421125020256221 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23345827 + ... + 37246176.

It is an arithmetic number, because the mean of its divisors is an integer number (29011148555180).

Almost surely, 2^{421125024450525} is an apocalyptic number.

It is an amenable number.

421125024450525 is a deficient number, since it is larger than the sum of its proper divisors (275142540873795).

421125024450525 is a wasteful number, since it uses less digits than its factorization.

421125024450525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60684685 (or 60684680 counting only the distinct ones).

The product of its (nonzero) digits is 640000, while the sum is 42.

Adding to 421125024450525 its reverse (525054420521124), we get a palindrome (946179444971649).

The spelling of 421125024450525 in words is "four hundred twenty-one trillion, one hundred twenty-five billion, twenty-four million, four hundred fifty thousand, five hundred twenty-five".