5451054021 has 24 divisors (see below), whose sum is σ = 9007252800. Its totient is φ = 3111880896.

The previous prime is 5451053999. The next prime is 5451054041. The reversal of 5451054021 is 1204501545.

5451054021 is a `hidden beast` number, since 54 + 51 + 0 + 540 + 21 = 666.

It is not a de Polignac number, because 5451054021 - 2¹⁷ = 5450922949 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5451054041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24846 + ... + 107328.

It is an arithmetic number, because the mean of its divisors is an integer number (375302200).

Almost surely, 2^5451054021 is an apocalyptic number.

It is an amenable number.

5451054021 is a deficient number, since it is larger than the sum of its proper divisors (3556198779).

5451054021 is a wasteful number, since it uses less digits than its factorization.

5451054021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83545 (or 83542 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 27.

The square root of 5451054021 is about 73831.2536870396. The cubic root of 5451054021 is about 1759.9223042707.

Adding to 5451054021 its reverse (1204501545), we get a palindrome (6655555566).

The spelling of 5451054021 in words is "five billion, four hundred fifty-one million, fifty-four thousand, twenty-one".