1055615515 has 16 divisors (see below), whose sum is σ = 1311749280. Its totient is φ = 814544640.

The previous prime is 1055615507. The next prime is 1055615549. The reversal of 1055615515 is 5155165501.

It is not a de Polignac number, because 1055615515 - 2³ = 1055615507 is a prime.

It is a super-2 number, since 2×1055615515² = 2228648231017430450, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 166687 + ... + 172903.

It is an arithmetic number, because the mean of its divisors is an integer number (81984330).

Almost surely, 2^1055615515 is an apocalyptic number.

1055615515 is a deficient number, since it is larger than the sum of its proper divisors (256133765).

1055615515 is a wasteful number, since it uses less digits than its factorization.

1055615515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7422.

The product of its (nonzero) digits is 18750, while the sum is 34.

The square root of 1055615515 is about 32490.2372259730. The cubic root of 1055615515 is about 1018.2050692513.

The spelling of 1055615515 in words is "one billion, fifty-five million, six hundred fifteen thousand, five hundred fifteen".