54259785 has 12 divisors (see below), whose sum is σ = 94050372. Its totient is φ = 28938528.

The previous prime is 54259781. The next prime is 54259787. The reversal of 54259785 is 58795245.

54259785 is a `hidden beast` number, since 54 + 2 + 597 + 8 + 5 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 42889401 + 11370384 = 6549^2 + 3372^2 .

It is not a de Polignac number, because 54259785 - 2² = 54259781 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 1205773 = 54259785 / (5 + 4 + 2 + 5 + 9 + 7 + 8 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 54259785.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54259781) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 602842 + ... + 602931.

It is an arithmetic number, because the mean of its divisors is an integer number (7837531).

Almost surely, 2^54259785 is an apocalyptic number.

It is an amenable number.

54259785 is a deficient number, since it is larger than the sum of its proper divisors (39790587).

54259785 is a wasteful number, since it uses less digits than its factorization.

54259785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1205784 (or 1205781 counting only the distinct ones).

The product of its digits is 504000, while the sum is 45.

The square root of 54259785 is about 7366.1241504607. The cubic root of 54259785 is about 378.5814725844.

The spelling of 54259785 in words is "fifty-four million, two hundred fifty-nine thousand, seven hundred eighty-five".