52919257 has 4 divisors (see below), whose sum is σ = 52957620. Its totient is φ = 52880896.

The previous prime is 52919239. The next prime is 52919261. The reversal of 52919257 is 75291925.

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 41332041 + 11587216 = 6429^2 + 3404^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52919257 is a prime.

It is a super-2 number, since 2×52919257² = 5600895522864098, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52919357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17032 + ... + 19897.

It is an arithmetic number, because the mean of its divisors is an integer number (13239405).

Almost surely, 2^52919257 is an apocalyptic number.

It is an amenable number.

52919257 is a deficient number, since it is larger than the sum of its proper divisors (38363).

52919257 is a wasteful number, since it uses less digits than its factorization.

52919257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38362.

The product of its digits is 56700, while the sum is 40.

The square root of 52919257 is about 7274.5623236041. The cubic root of 52919257 is about 375.4377276680.

The spelling of 52919257 in words is "fifty-two million, nine hundred nineteen thousand, two hundred fifty-seven".