52881709 has 2 divisors, whose sum is σ = 52881710. Its totient is φ = 52881708.

The previous prime is 52881683. The next prime is 52881733. The reversal of 52881709 is 90718825.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28408900 + 24472809 = 5330^2 + 4947^2 .

It is a cyclic number.

It is not a de Polignac number, because 52881709 - 2¹³ = 52873517 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52881779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26440854 + 26440855.

It is an arithmetic number, because the mean of its divisors is an integer number (26440855).

Almost surely, 2^52881709 is an apocalyptic number.

It is an amenable number.

52881709 is a deficient number, since it is larger than the sum of its proper divisors (1).

52881709 is an equidigital number, since it uses as much as digits as its factorization.

52881709 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40320, while the sum is 40.

The square root of 52881709 is about 7271.9810918346. The cubic root of 52881709 is about 375.3489114097.

The spelling of 52881709 in words is "fifty-two million, eight hundred eighty-one thousand, seven hundred nine".