53747823 has 4 divisors (see below), whose sum is σ = 71663768. Its totient is φ = 35831880.

The previous prime is 53747821. The next prime is 53747833. The reversal of 53747823 is 32874735.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 53747823 - 2¹ = 53747821 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53747821) 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, 8957968 + ... + 8957973.

It is an arithmetic number, because the mean of its divisors is an integer number (17915942).

Almost surely, 2^53747823 is an apocalyptic number.

53747823 is a deficient number, since it is larger than the sum of its proper divisors (17915945).

53747823 is a wasteful number, since it uses less digits than its factorization.

53747823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17915944.

The product of its digits is 141120, while the sum is 39.

The square root of 53747823 is about 7331.2906776365. The cubic root of 53747823 is about 377.3870205595.

The spelling of 53747823 in words is "fifty-three million, seven hundred forty-seven thousand, eight hundred twenty-three".