2153015554 has 16 divisors (see below), whose sum is σ = 3289685400. Its totient is φ = 1056630784.

The previous prime is 2153015509. The next prime is 2153015569. The reversal of 2153015554 is 4555103512.

It can be written as a sum of positive squares in 4 ways, for example, as 1954966225 + 198049329 = 44215^2 + 14073^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19759 + ... + 68530.

Almost surely, 2^2153015554 is an apocalyptic number.

2153015554 is a deficient number, since it is larger than the sum of its proper divisors (1136669846).

2153015554 is a wasteful number, since it uses less digits than its factorization.

2153015554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88517.

The product of its (nonzero) digits is 15000, while the sum is 31.

The square root of 2153015554 is about 46400.5986383797. The cubic root of 2153015554 is about 1291.2660194928.

The spelling of 2153015554 in words is "two billion, one hundred fifty-three million, fifteen thousand, five hundred fifty-four".