5453145621 has 24 divisors (see below), whose sum is σ = 9820384704. Its totient is φ = 2832802560.

The previous prime is 5453145563. The next prime is 5453145661. The reversal of 5453145621 is 1265413545.

5453145621 is a `hidden beast` number, since 5 + 453 + 145 + 62 + 1 = 666.

It is not a de Polignac number, because 5453145621 - 2¹¹ = 5453143573 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5453145661) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3933756 + ... + 3935141.

It is an arithmetic number, because the mean of its divisors is an integer number (409182696).

Almost surely, 2^5453145621 is an apocalyptic number.

It is an amenable number.

5453145621 is a deficient number, since it is larger than the sum of its proper divisors (4367239083).

5453145621 is a wasteful number, since it uses less digits than its factorization.

5453145621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7868921 (or 7868918 counting only the distinct ones).

The product of its digits is 72000, while the sum is 36.

The square root of 5453145621 is about 73845.4170615889. The cubic root of 5453145621 is about 1760.1473728394.

The spelling of 5453145621 in words is "five billion, four hundred fifty-three million, one hundred forty-five thousand, six hundred twenty-one".