54215554532155 has 16 divisors (see below), whose sum is σ = 67018447346400. Its totient is φ = 42079461435648.

The previous prime is 54215554532123. The next prime is 54215554532189. The reversal of 54215554532155 is 55123545551245.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 54215554532155 - 2⁵ = 54215554532123 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 846160482 + ... + 846224551.

It is an arithmetic number, because the mean of its divisors is an integer number (4188652959150).

Almost surely, 2^{54215554532155} is an apocalyptic number.

54215554532155 is a deficient number, since it is larger than the sum of its proper divisors (12802892814245).

54215554532155 is a wasteful number, since it uses less digits than its factorization.

54215554532155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1692385230.

The product of its digits is 15000000, while the sum is 52.

The spelling of 54215554532155 in words is "fifty-four trillion, two hundred fifteen billion, five hundred fifty-four million, five hundred thirty-two thousand, one hundred fifty-five".