52154309 has 2 divisors, whose sum is σ = 52154310. Its totient is φ = 52154308.

The previous prime is 52154303. The next prime is 52154437. The reversal of 52154309 is 90345125.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26368225 + 25786084 = 5135^2 + 5078^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52154309 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52154303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26077154 + 26077155.

It is an arithmetic number, because the mean of its divisors is an integer number (26077155).

Almost surely, 2^52154309 is an apocalyptic number.

It is an amenable number.

52154309 is a deficient number, since it is larger than the sum of its proper divisors (1).

52154309 is an equidigital number, since it uses as much as digits as its factorization.

52154309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5400, while the sum is 29.

The square root of 52154309 is about 7221.7940291869. The cubic root of 52154309 is about 373.6199562488.

The spelling of 52154309 in words is "fifty-two million, one hundred fifty-four thousand, three hundred nine".