2153403555 has 16 divisors (see below), whose sum is σ = 3564254880. Its totient is φ = 1108878848.

The previous prime is 2153403521. The next prime is 2153403563. The reversal of 2153403555 is 5553043512.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 2153403555 - 2¹⁷ = 2153272483 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2474742 + ... + 2475611.

It is an arithmetic number, because the mean of its divisors is an integer number (222765930).

Almost surely, 2^2153403555 is an apocalyptic number.

2153403555 is a deficient number, since it is larger than the sum of its proper divisors (1410851325).

2153403555 is a wasteful number, since it uses less digits than its factorization.

2153403555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4950390.

The product of its (nonzero) digits is 45000, while the sum is 33.

The square root of 2153403555 is about 46404.7794413463. The cubic root of 2153403555 is about 1291.3435823964.

The spelling of 2153403555 in words is "two billion, one hundred fifty-three million, four hundred three thousand, five hundred fifty-five".