52939561 has 2 divisors, whose sum is σ = 52939562. Its totient is φ = 52939560.

The previous prime is 52939541. The next prime is 52939573. The reversal of 52939561 is 16593925.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 50197225 + 2742336 = 7085^2 + 1656^2 .

It is a cyclic number.

It is not a de Polignac number, because 52939561 - 2¹⁵ = 52906793 is a prime.

It is not a weakly prime, because it can be changed into another prime (52939541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26469780 + 26469781.

It is an arithmetic number, because the mean of its divisors is an integer number (26469781).

Almost surely, 2^52939561 is an apocalyptic number.

It is an amenable number.

52939561 is a deficient number, since it is larger than the sum of its proper divisors (1).

52939561 is an equidigital number, since it uses as much as digits as its factorization.

52939561 is an evil number, because the sum of its binary digits is even.

The product of its digits is 72900, while the sum is 40.

The square root of 52939561 is about 7275.9577376453. The cubic root of 52939561 is about 375.4857373677.

The spelling of 52939561 in words is "fifty-two million, nine hundred thirty-nine thousand, five hundred sixty-one".