45544525421 has 8 divisors (see below), whose sum is σ = 45929689344. Its totient is φ = 45160899840.

The previous prime is 45544525391. The next prime is 45544525441. The reversal of 45544525421 is 12452544554.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45544525421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45544525441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 325085 + ... + 443586.

It is an arithmetic number, because the mean of its divisors is an integer number (5741211168).

Almost surely, 2^45544525421 is an apocalyptic number.

It is an amenable number.

45544525421 is a deficient number, since it is larger than the sum of its proper divisors (385163923).

45544525421 is a wasteful number, since it uses less digits than its factorization.

45544525421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 769171.

The product of its digits is 640000, while the sum is 41.

The spelling of 45544525421 in words is "forty-five billion, five hundred forty-four million, five hundred twenty-five thousand, four hundred twenty-one".