5421421515 has 32 divisors (see below), whose sum is σ = 8986171392. Its totient is φ = 2788128000.

The previous prime is 5421421493. The next prime is 5421421529. The reversal of 5421421515 is 5151241245.

It is not a de Polignac number, because 5421421515 - 2⁷ = 5421421387 is a prime.

It is a super-2 number, since 2×5421421515² = 58783622486609790450, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 109920 + ... + 151410.

It is an arithmetic number, because the mean of its divisors is an integer number (280817856).

Almost surely, 2^5421421515 is an apocalyptic number.

5421421515 is a deficient number, since it is larger than the sum of its proper divisors (3564749877).

5421421515 is a wasteful number, since it uses less digits than its factorization.

5421421515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41811.

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

The square root of 5421421515 is about 73630.3029669171. The cubic root of 5421421515 is about 1756.7274668592.

The spelling of 5421421515 in words is "five billion, four hundred twenty-one million, four hundred twenty-one thousand, five hundred fifteen".