52791761 has 4 divisors (see below), whose sum is σ = 57591024. Its totient is φ = 47992500.

The previous prime is 52791757. The next prime is 52791787. The reversal of 52791761 is 16719725.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 52791761 - 2² = 52791757 is a prime.

It is a super-2 number, since 2×52791761² = 5573940058962242, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (52791701) 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, 2399615 + ... + 2399636.

It is an arithmetic number, because the mean of its divisors is an integer number (14397756).

Almost surely, 2^52791761 is an apocalyptic number.

It is an amenable number.

52791761 is a deficient number, since it is larger than the sum of its proper divisors (4799263).

52791761 is a wasteful number, since it uses less digits than its factorization.

52791761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4799262.

The product of its digits is 26460, while the sum is 38.

The square root of 52791761 is about 7265.7939001874. The cubic root of 52791761 is about 375.1359767623.

Subtracting from 52791761 its reverse (16719725), we obtain a square (36072036 = 6006²).

The spelling of 52791761 in words is "fifty-two million, seven hundred ninety-one thousand, seven hundred sixty-one".