54155745 has 24 divisors (see below), whose sum is σ = 107280576. Its totient is φ = 24756768.

The previous prime is 54155683. The next prime is 54155749. The reversal of 54155745 is 54755145.

It is not a de Polignac number, because 54155745 - 2¹² = 54151649 is a prime.

It is not an unprimeable number, because it can be changed into a prime (54155749) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 85647 + ... + 86276.

It is an arithmetic number, because the mean of its divisors is an integer number (4470024).

Almost surely, 2^54155745 is an apocalyptic number.

It is an amenable number.

54155745 is a deficient number, since it is larger than the sum of its proper divisors (53124831).

54155745 is a wasteful number, since it uses less digits than its factorization.

54155745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171941 (or 171938 counting only the distinct ones).

The product of its digits is 70000, while the sum is 36.

The square root of 54155745 is about 7359.0587033941. The cubic root of 54155745 is about 378.3393484050.

The spelling of 54155745 in words is "fifty-four million, one hundred fifty-five thousand, seven hundred forty-five".