5515915 has 4 divisors (see below), whose sum is σ = 6619104. Its totient is φ = 4412728.

The previous prime is 5515903. The next prime is 5515921. The reversal of 5515915 is 5195155.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 5515915 - 2⁷ = 5515787 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 551587 + ... + 551596.

It is an arithmetic number, because the mean of its divisors is an integer number (1654776).

Almost surely, 2^5515915 is an apocalyptic number.

5515915 is a deficient number, since it is larger than the sum of its proper divisors (1103189).

5515915 is a wasteful number, since it uses less digits than its factorization.

5515915 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1103188.

The product of its digits is 5625, while the sum is 31.

The square root of 5515915 is about 2348.5985182657. The cubic root of 5515915 is about 176.6875118792.

The spelling of 5515915 in words is "five million, five hundred fifteen thousand, nine hundred fifteen".