2153554455 has 16 divisors (see below), whose sum is σ = 3710740320. Its totient is φ = 1060211328.

The previous prime is 2153554451. The next prime is 2153554477. The reversal of 2153554455 is 5544553512.

It is not a de Polignac number, because 2153554455 - 2² = 2153554451 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2153554451) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5521740 + ... + 5522129.

It is an arithmetic number, because the mean of its divisors is an integer number (231921270).

Almost surely, 2^2153554455 is an apocalyptic number.

2153554455 is a deficient number, since it is larger than the sum of its proper divisors (1557185865).

2153554455 is a wasteful number, since it uses less digits than its factorization.

2153554455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11043890.

The product of its digits is 300000, while the sum is 39.

The square root of 2153554455 is about 46406.4053229724. The cubic root of 2153554455 is about 1291.3737453749.

The spelling of 2153554455 in words is "two billion, one hundred fifty-three million, five hundred fifty-four thousand, four hundred fifty-five".