52109479 has 2 divisors, whose sum is σ = 52109480. Its totient is φ = 52109478.

The previous prime is 52109459. The next prime is 52109489. The reversal of 52109479 is 97490125.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52109479 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52109429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26054739 + 26054740.

It is an arithmetic number, because the mean of its divisors is an integer number (26054740).

Almost surely, 2^52109479 is an apocalyptic number.

52109479 is a deficient number, since it is larger than the sum of its proper divisors (1).

52109479 is an equidigital number, since it uses as much as digits as its factorization.

52109479 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 22680, while the sum is 37.

The square root of 52109479 is about 7218.6895625176. The cubic root of 52109479 is about 373.5128753939.

The spelling of 52109479 in words is "fifty-two million, one hundred nine thousand, four hundred seventy-nine".