52940581 has 4 divisors (see below), whose sum is σ = 53045100. Its totient is φ = 52836064.

The previous prime is 52940539. The next prime is 52940603. The reversal of 52940581 is 18504925.

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 20848356 + 32092225 = 4566^2 + 5665^2 .

It is a cyclic number.

It is not a de Polignac number, because 52940581 - 2⁷ = 52940453 is a prime.

It is a super-2 number, since 2×52940581² = 5605410233235122, 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 (52943581) 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, 51496 + ... + 52513.

It is an arithmetic number, because the mean of its divisors is an integer number (13261275).

Almost surely, 2^52940581 is an apocalyptic number.

It is an amenable number.

52940581 is a deficient number, since it is larger than the sum of its proper divisors (104519).

52940581 is a wasteful number, since it uses less digits than its factorization.

52940581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104518.

The product of its (nonzero) digits is 14400, while the sum is 34.

The square root of 52940581 is about 7276.0278311727. The cubic root of 52940581 is about 375.4881488787.

The spelling of 52940581 in words is "fifty-two million, nine hundred forty thousand, five hundred eighty-one".