54273945 has 48 divisors (see below), whose sum is σ = 101122560. Its totient is φ = 24752640.

The previous prime is 54273943. The next prime is 54273971. The reversal of 54273945 is 54937245.

It is not a de Polignac number, because 54273945 - 2¹ = 54273943 is a prime.

It is a super-2 number, since 2×54273945² = 5891322211726050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54273943) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 29976 + ... + 31734.

It is an arithmetic number, because the mean of its divisors is an integer number (2106720).

Almost surely, 2^54273945 is an apocalyptic number.

54273945 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

54273945 is a deficient number, since it is larger than the sum of its proper divisors (46848615).

54273945 is a wasteful number, since it uses less digits than its factorization.

54273945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1806 (or 1795 counting only the distinct ones).

The product of its digits is 151200, while the sum is 39.

The square root of 54273945 is about 7367.0852445184. The cubic root of 54273945 is about 378.6144021128.

The spelling of 54273945 in words is "fifty-four million, two hundred seventy-three thousand, nine hundred forty-five".