54356693 has 4 divisors (see below), whose sum is σ = 55682508. Its totient is φ = 53030880.

The previous prime is 54356689. The next prime is 54356699. The reversal of 54356693 is 39665345.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 39665345 = 5 ⋅7933069.

It can be written as a sum of positive squares in 2 ways, for example, as 26234884 + 28121809 = 5122^2 + 5303^2 .

It is a cyclic number.

It is not a de Polignac number, because 54356693 - 2² = 54356689 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41), and also a Moran number because the ratio is a prime number: 1325773 = 54356693 / (5 + 4 + 3 + 5 + 6 + 6 + 9 + 3).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 54356693.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54356699) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 662846 + ... + 662927.

It is an arithmetic number, because the mean of its divisors is an integer number (13920627).

Almost surely, 2^54356693 is an apocalyptic number.

It is an amenable number.

54356693 is a deficient number, since it is larger than the sum of its proper divisors (1325815).

54356693 is a wasteful number, since it uses less digits than its factorization.

54356693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1325814.

The product of its digits is 291600, while the sum is 41.

The square root of 54356693 is about 7372.6991665197. The cubic root of 54356693 is about 378.8067207656.

The spelling of 54356693 in words is "fifty-four million, three hundred fifty-six thousand, six hundred ninety-three".