2155254403 has 8 divisors (see below), whose sum is σ = 2214518400. Its totient is φ = 2096043840.

The previous prime is 2155254383. The next prime is 2155254449. The reversal of 2155254403 is 3044525512.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2155254403 - 2¹⁷ = 2155123331 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2155284403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76623 + ... + 100903.

It is an arithmetic number, because the mean of its divisors is an integer number (276814800).

Almost surely, 2^2155254403 is an apocalyptic number.

2155254403 is a deficient number, since it is larger than the sum of its proper divisors (59263997).

2155254403 is a wasteful number, since it uses less digits than its factorization.

2155254403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26717.

The product of its (nonzero) digits is 24000, while the sum is 31.

The square root of 2155254403 is about 46424.7175866477. The cubic root of 2155254403 is about 1291.7134459164.

Adding to 2155254403 its reverse (3044525512), we get a palindrome (5199779915).

The spelling of 2155254403 in words is "two billion, one hundred fifty-five million, two hundred fifty-four thousand, four hundred three".