52149717 has 32 divisors (see below), whose sum is σ = 81715200. Its totient is φ = 32803056.

The previous prime is 52149709. The next prime is 52149751. The reversal of 52149717 is 71794125.

It is a happy number.

It is not a de Polignac number, because 52149717 - 2³ = 52149709 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52149787) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 48528 + ... + 49590.

It is an arithmetic number, because the mean of its divisors is an integer number (2553600).

Almost surely, 2^52149717 is an apocalyptic number.

It is an amenable number.

52149717 is a deficient number, since it is larger than the sum of its proper divisors (29565483).

52149717 is a wasteful number, since it uses less digits than its factorization.

52149717 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1174 (or 1168 counting only the distinct ones).

The product of its digits is 17640, while the sum is 36.

The square root of 52149717 is about 7221.4760956469. The cubic root of 52149717 is about 373.6089906276.

It can be divided in two parts, 52 and 149717, that added together give a square (149769 = 387²).

The spelling of 52149717 in words is "fifty-two million, one hundred forty-nine thousand, seven hundred seventeen".