2154272557 has 8 divisors (see below), whose sum is σ = 2185417152. Its totient is φ = 2123150400.

The previous prime is 2154272543. The next prime is 2154272581. The reversal of 2154272557 is 7552724512.

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 2154272557 - 2¹⁹ = 2153748269 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2154272537) 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, 331978 + ... + 338404.

It is an arithmetic number, because the mean of its divisors is an integer number (273177144).

Almost surely, 2^2154272557 is an apocalyptic number.

It is an amenable number.

2154272557 is a deficient number, since it is larger than the sum of its proper divisors (31144595).

2154272557 is an equidigital number, since it uses as much as digits as its factorization.

2154272557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11219.

The product of its digits is 196000, while the sum is 40.

The square root of 2154272557 is about 46414.1417781262. The cubic root of 2154272557 is about 1291.5172654691.

The spelling of 2154272557 in words is "two billion, one hundred fifty-four million, two hundred seventy-two thousand, five hundred fifty-seven".