4521521451 has 16 divisors (see below), whose sum is σ = 6198571008. Its totient is φ = 2929953600.

The previous prime is 4521521441. The next prime is 4521521453. The reversal of 4521521451 is 1541251254.

It is not a de Polignac number, because 4521521451 - 2⁵ = 4521521419 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4521521453) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34491 + ... + 101156.

It is an arithmetic number, because the mean of its divisors is an integer number (387410688).

Almost surely, 2^4521521451 is an apocalyptic number.

4521521451 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

4521521451 is a deficient number, since it is larger than the sum of its proper divisors (1677049557).

4521521451 is a wasteful number, since it uses less digits than its factorization.

4521521451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135962.

The product of its digits is 8000, while the sum is 30.

The square root of 4521521451 is about 67242.2594132589. The cubic root of 4521521451 is about 1653.5913755355.

It can be divided in two parts, 45215 and 21451, that added together give a palindrome (66666).

The spelling of 4521521451 in words is "four billion, five hundred twenty-one million, five hundred twenty-one thousand, four hundred fifty-one".