54043515 has 24 divisors (see below), whose sum is σ = 93972528. Its totient is φ = 28731840.

The previous prime is 54043513. The next prime is 54043553. The reversal of 54043515 is 51534045.

It is not a de Polignac number, because 54043515 - 2¹ = 54043513 is a prime.

It is not an unprimeable number, because it can be changed into a prime (54043511) 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, 13885 + ... + 17345.

It is an arithmetic number, because the mean of its divisors is an integer number (3915522).

Almost surely, 2^54043515 is an apocalyptic number.

54043515 is a deficient number, since it is larger than the sum of its proper divisors (39929013).

54043515 is a wasteful number, since it uses less digits than its factorization.

54043515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3819 (or 3816 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The square root of 54043515 is about 7351.4294528343. The cubic root of 54043515 is about 378.0778163469.

The spelling of 54043515 in words is "fifty-four million, forty-three thousand, five hundred fifteen".