54399553 has 8 divisors (see below), whose sum is σ = 59154368. Its totient is φ = 49726224.

The previous prime is 54399547. The next prime is 54399557. The reversal of 54399553 is 35599345.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 54399553 - 2²¹ = 52302401 is a prime.

It is a super-2 number, since 2×54399553² = 5918622733199618, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (54399557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18975 + ... + 21652.

It is an arithmetic number, because the mean of its divisors is an integer number (7394296).

Almost surely, 2^54399553 is an apocalyptic number.

It is an amenable number.

54399553 is a deficient number, since it is larger than the sum of its proper divisors (4754815).

54399553 is a wasteful number, since it uses less digits than its factorization.

54399553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40743.

The product of its digits is 364500, while the sum is 43.

The square root of 54399553 is about 7375.6052632987. The cubic root of 54399553 is about 378.9062570556.

The spelling of 54399553 in words is "fifty-four million, three hundred ninety-nine thousand, five hundred fifty-three".