52790581 has 2 divisors, whose sum is σ = 52790582. Its totient is φ = 52790580.

The previous prime is 52790561. The next prime is 52790587. The reversal of 52790581 is 18509725.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 35700625 + 17089956 = 5975^2 + 4134^2 .

It is a cyclic number.

It is not a de Polignac number, because 52790581 - 2¹⁹ = 52266293 is a prime.

It is a super-2 number, since 2×52790581² = 5573690884635122, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 52790581.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52790587) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26395290 + 26395291.

It is an arithmetic number, because the mean of its divisors is an integer number (26395291).

Almost surely, 2^52790581 is an apocalyptic number.

It is an amenable number.

52790581 is a deficient number, since it is larger than the sum of its proper divisors (1).

52790581 is an equidigital number, since it uses as much as digits as its factorization.

52790581 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25200, while the sum is 37.

The square root of 52790581 is about 7265.7126973202. The cubic root of 52790581 is about 375.1331817318.

The spelling of 52790581 in words is "fifty-two million, seven hundred ninety thousand, five hundred eighty-one".