52975381 has 4 divisors (see below), whose sum is σ = 53570700. Its totient is φ = 52380064.

The previous prime is 52975369. The next prime is 52975393. The reversal of 52975381 is 18357925.

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

It is an interprime number because it is at equal distance from previous prime (52975369) and next prime (52975393).

It can be written as a sum of positive squares in 2 ways, for example, as 12716356 + 40259025 = 3566^2 + 6345^2 .

It is a cyclic number.

It is not a de Polignac number, because 52975381 - 2¹⁵ = 52942613 is a prime.

It is a super-2 number, since 2×52975381² = 5612781984190322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52975361) 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, 297526 + ... + 297703.

It is an arithmetic number, because the mean of its divisors is an integer number (13392675).

Almost surely, 2^52975381 is an apocalyptic number.

It is an amenable number.

52975381 is a deficient number, since it is larger than the sum of its proper divisors (595319).

52975381 is an equidigital number, since it uses as much as digits as its factorization.

52975381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 595318.

The product of its digits is 75600, while the sum is 40.

The square root of 52975381 is about 7278.4188530202. The cubic root of 52975381 is about 375.5704054087.

The spelling of 52975381 in words is "fifty-two million, nine hundred seventy-five thousand, three hundred eighty-one".