2153542455 has 24 divisors (see below), whose sum is σ = 3767701392. Its totient is φ = 1137819264.

The previous prime is 2153542453. The next prime is 2153542459. The reversal of 2153542455 is 5542453512.

2153542455 is a `hidden beast` number, since 2 + 153 + 54 + 2 + 455 = 666.

It is not a de Polignac number, because 2153542455 - 2¹ = 2153542453 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2153542451) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 218814 + ... + 228443.

It is an arithmetic number, because the mean of its divisors is an integer number (156987558).

Almost surely, 2^2153542455 is an apocalyptic number.

2153542455 is a deficient number, since it is larger than the sum of its proper divisors (1614158937).

2153542455 is a wasteful number, since it uses less digits than its factorization.

2153542455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 447375 (or 447372 counting only the distinct ones).

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

The square root of 2153542455 is about 46406.2760302957. The cubic root of 2153542455 is about 1291.3713467801.

Adding to 2153542455 its reverse (5542453512), we get a palindrome (7695995967).

The spelling of 2153542455 in words is "two billion, one hundred fifty-three million, five hundred forty-two thousand, four hundred fifty-five".