52691797 has 4 divisors (see below), whose sum is σ = 52861536. Its totient is φ = 52522060.

The previous prime is 52691791. The next prime is 52691809. The reversal of 52691797 is 79719625.

It is a happy number.

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 52691797 - 2⁷ = 52691669 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 (52691791) 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, 84403 + ... + 85024.

It is an arithmetic number, because the mean of its divisors is an integer number (13215384).

Almost surely, 2^52691797 is an apocalyptic number.

It is an amenable number.

52691797 is a deficient number, since it is larger than the sum of its proper divisors (169739).

52691797 is a wasteful number, since it uses less digits than its factorization.

52691797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169738.

The product of its digits is 238140, while the sum is 46.

The square root of 52691797 is about 7258.9115575271. The cubic root of 52691797 is about 374.8990471956.

The spelling of 52691797 in words is "fifty-two million, six hundred ninety-one thousand, seven hundred ninety-seven".