2155254453 has 32 divisors (see below), whose sum is σ = 3517776000. Its totient is φ = 1293264000.

The previous prime is 2155254449. The next prime is 2155254481. The reversal of 2155254453 is 3544525512.

2155254453 is a `hidden beast` number, since 2 + 1 + 552 + 54 + 4 + 53 = 666.

It is not a de Polignac number, because 2155254453 - 2² = 2155254449 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2155254253) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5928 + ... + 65921.

It is an arithmetic number, because the mean of its divisors is an integer number (109930500).

Almost surely, 2^2155254453 is an apocalyptic number.

It is an amenable number.

2155254453 is a deficient number, since it is larger than the sum of its proper divisors (1362521547).

2155254453 is a wasteful number, since it uses less digits than its factorization.

2155254453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71970 (or 71964 counting only the distinct ones).

The product of its digits is 120000, while the sum is 36.

The square root of 2155254453 is about 46424.7181251540. The cubic root of 2155254453 is about 1291.7134559053.

Adding to 2155254453 its reverse (3544525512), we get a palindrome (5699779965).

The spelling of 2155254453 in words is "two billion, one hundred fifty-five million, two hundred fifty-four thousand, four hundred fifty-three".