54399975 has 24 divisors (see below), whose sum is σ = 102791040. Its totient is φ = 24868320.

The previous prime is 54399973. The next prime is 54399979. The reversal of 54399975 is 57999345.

It is a happy number.

It is not a de Polignac number, because 54399975 - 2¹ = 54399973 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54399971) 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, 51285 + ... + 52334.

It is an arithmetic number, because the mean of its divisors is an integer number (4282960).

Almost surely, 2^54399975 is an apocalyptic number.

54399975 is a deficient number, since it is larger than the sum of its proper divisors (48391065).

54399975 is a wasteful number, since it uses less digits than its factorization.

54399975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103639 (or 103634 counting only the distinct ones).

The product of its digits is 1530900, while the sum is 51.

The square root of 54399975 is about 7375.6338710649. The cubic root of 54399975 is about 378.9072368310.

The spelling of 54399975 in words is "fifty-four million, three hundred ninety-nine thousand, nine hundred seventy-five".