2154502655 has 32 divisors (see below), whose sum is σ = 2742854400. Its totient is φ = 1622218752.

The previous prime is 2154502631. The next prime is 2154502657. The reversal of 2154502655 is 5562054512.

It is a cyclic number.

It is not a de Polignac number, because 2154502655 - 2¹⁰ = 2154501631 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2154502657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 940922 + ... + 943208.

It is an arithmetic number, because the mean of its divisors is an integer number (85714200).

Almost surely, 2^2154502655 is an apocalyptic number.

2154502655 is a deficient number, since it is larger than the sum of its proper divisors (588351745).

2154502655 is a wasteful number, since it uses less digits than its factorization.

2154502655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2483.

The product of its (nonzero) digits is 60000, while the sum is 35.

The square root of 2154502655 is about 46416.6204607789. The cubic root of 2154502655 is about 1291.5632461814.

The spelling of 2154502655 in words is "two billion, one hundred fifty-four million, five hundred two thousand, six hundred fifty-five".