53140761 has 12 divisors (see below), whose sum is σ = 77147200. Its totient is φ = 35247960.

The previous prime is 53140757. The next prime is 53140837. The reversal of 53140761 is 16704135.

It is not a de Polignac number, because 53140761 - 2² = 53140757 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53140721) 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, 13045 + ... + 16626.

Almost surely, 2^53140761 is an apocalyptic number.

It is an amenable number.

53140761 is a deficient number, since it is larger than the sum of its proper divisors (24006439).

53140761 is a wasteful number, since it uses less digits than its factorization.

53140761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29876 (or 29873 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 53140761 is about 7289.7709840570. The cubic root of 53140761 is about 375.9608214233.

Adding to 53140761 its reverse (16704135), we get a palindrome (69844896).

The spelling of 53140761 in words is "fifty-three million, one hundred forty thousand, seven hundred sixty-one".