52909657 has 2 divisors, whose sum is σ = 52909658. Its totient is φ = 52909656.

The previous prime is 52909613. The next prime is 52909663. The reversal of 52909657 is 75690925.

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., 43243776 + 9665881 = 6576^2 + 3109^2 .

It is a cyclic number.

It is not a de Polignac number, because 52909657 - 2²³ = 44521049 is a prime.

It is not a weakly prime, because it can be changed into another prime (52909687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26454828 + 26454829.

It is an arithmetic number, because the mean of its divisors is an integer number (26454829).

Almost surely, 2^52909657 is an apocalyptic number.

It is an amenable number.

52909657 is a deficient number, since it is larger than the sum of its proper divisors (1).

52909657 is an equidigital number, since it uses as much as digits as its factorization.

52909657 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 170100, while the sum is 43.

The square root of 52909657 is about 7273.9024601654. The cubic root of 52909657 is about 375.4150237705.

The spelling of 52909657 in words is "fifty-two million, nine hundred nine thousand, six hundred fifty-seven".