545125232421 has 80 divisors (see below), whose sum is σ = 1032468180480. Its totient is φ = 278382057120.

The previous prime is 545125232419. The next prime is 545125232423. The reversal of 545125232421 is 124232521545.

545125232421 is a `hidden beast` number, since 54 + 512 + 52 + 3 + 2 + 42 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (545125232419) and next prime (545125232423).

It is not a de Polignac number, because 545125232421 - 2¹ = 545125232419 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545125232423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 372711 + ... + 1108676.

It is an arithmetic number, because the mean of its divisors is an integer number (12905852256).

Almost surely, 2^545125232421 is an apocalyptic number.

It is an amenable number.

545125232421 is a deficient number, since it is larger than the sum of its proper divisors (487342948059).

545125232421 is a wasteful number, since it uses less digits than its factorization.

545125232421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1481476 (or 1481467 counting only the distinct ones).

The product of its digits is 96000, while the sum is 36.

Adding to 545125232421 its reverse (124232521545), we get a palindrome (669357753966).

The spelling of 545125232421 in words is "five hundred forty-five billion, one hundred twenty-five million, two hundred thirty-two thousand, four hundred twenty-one".