52729947 has 10 divisors (see below), whose sum is σ = 78769548. Its totient is φ = 35153244.

The previous prime is 52729939. The next prime is 52729951. The reversal of 52729947 is 74992725.

It is not a de Polignac number, because 52729947 - 2³ = 52729939 is a prime.

It is not an unprimeable number, because it can be changed into a prime (52729927) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 325413 + ... + 325574.

Almost surely, 2^52729947 is an apocalyptic number.

52729947 is a deficient number, since it is larger than the sum of its proper divisors (26039601).

52729947 is an equidigital number, since it uses as much as digits as its factorization.

52729947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 650999 (or 650990 counting only the distinct ones).

The product of its digits is 317520, while the sum is 45.

The square root of 52729947 is about 7261.5388864896. The cubic root of 52729947 is about 374.9895037062.

The spelling of 52729947 in words is "fifty-two million, seven hundred twenty-nine thousand, nine hundred forty-seven".