53684761 has 4 divisors (see below), whose sum is σ = 57814372. Its totient is φ = 49555152.

The previous prime is 53684753. The next prime is 53684767. The reversal of 53684761 is 16748635.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 16748635 = 5 ⋅3349727.

It can be written as a sum of positive squares in 2 ways, for example, as 13286025 + 40398736 = 3645^2 + 6356^2 .

It is a cyclic number.

It is not a de Polignac number, because 53684761 - 2³ = 53684753 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53684767) 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, 2064786 + ... + 2064811.

It is an arithmetic number, because the mean of its divisors is an integer number (14453593).

Almost surely, 2^53684761 is an apocalyptic number.

It is an amenable number.

53684761 is a deficient number, since it is larger than the sum of its proper divisors (4129611).

53684761 is a wasteful number, since it uses less digits than its factorization.

53684761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4129610.

The product of its digits is 120960, while the sum is 40.

The square root of 53684761 is about 7326.9885355445. The cubic root of 53684761 is about 377.2393674845.

It can be divided in two parts, 53684 and 761, that added together give a palindrome (54445).

The spelling of 53684761 in words is "fifty-three million, six hundred eighty-four thousand, seven hundred sixty-one".