45020455021 has 8 divisors (see below), whose sum is σ = 45484455744. Its totient is φ = 44558769120.

The previous prime is 45020455013. The next prime is 45020455049. The reversal of 45020455021 is 12055402054.

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

It is a cyclic number.

It is not a de Polignac number, because 45020455021 - 2³ = 45020455013 is a prime.

It is a super-2 number, since 2×45020455021² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45020452021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 539595 + ... + 617416.

It is an arithmetic number, because the mean of its divisors is an integer number (5685556968).

Almost surely, 2^45020455021 is an apocalyptic number.

It is an amenable number.

45020455021 is a deficient number, since it is larger than the sum of its proper divisors (464000723).

45020455021 is a wasteful number, since it uses less digits than its factorization.

45020455021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1157411.

The product of its (nonzero) digits is 8000, while the sum is 28.

Adding to 45020455021 its reverse (12055402054), we get a palindrome (57075857075).

The spelling of 45020455021 in words is "forty-five billion, twenty million, four hundred fifty-five thousand, twenty-one".