52997761 has 4 divisors (see below), whose sum is σ = 54825300. Its totient is φ = 51170224.

The previous prime is 52997759. The next prime is 52997767. The reversal of 52997761 is 16779925.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 15249025 + 37748736 = 3905^2 + 6144^2 .

It is a cyclic number.

It is not a de Polignac number, because 52997761 - 2¹ = 52997759 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52997767) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 913726 + ... + 913783.

It is an arithmetic number, because the mean of its divisors is an integer number (13706325).

Almost surely, 2^52997761 is an apocalyptic number.

It is an amenable number.

52997761 is a deficient number, since it is larger than the sum of its proper divisors (1827539).

52997761 is a wasteful number, since it uses less digits than its factorization.

52997761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1827538.

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

The square root of 52997761 is about 7279.9561125051. The cubic root of 52997761 is about 375.6232858358.

The spelling of 52997761 in words is "fifty-two million, nine hundred ninety-seven thousand, seven hundred sixty-one".