54157155 has 72 divisors (see below), whose sum is σ = 102429936. Its totient is φ = 24284160.

The previous prime is 54157139. The next prime is 54157183. The reversal of 54157155 is 55175145.

It is a happy number.

It is not a de Polignac number, because 54157155 - 2⁴ = 54157139 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1746990 + ... + 1747020.

It is an arithmetic number, because the mean of its divisors is an integer number (1422638).

Almost surely, 2^54157155 is an apocalyptic number.

54157155 is a deficient number, since it is larger than the sum of its proper divisors (48272781).

54157155 is a wasteful number, since it uses less digits than its factorization.

54157155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117 (or 69 counting only the distinct ones).

The product of its digits is 17500, while the sum is 33.

The square root of 54157155 is about 7359.1545030662. The cubic root of 54157155 is about 378.3426318600.

The spelling of 54157155 in words is "fifty-four million, one hundred fifty-seven thousand, one hundred fifty-five".