52149947 has 8 divisors (see below), whose sum is σ = 54617760. Its totient is φ = 49698880.

The previous prime is 52149907. The next prime is 52149949. The reversal of 52149947 is 74994125.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 52149947 - 2²² = 47955643 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52149949) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2429 + ... + 10497.

It is an arithmetic number, because the mean of its divisors is an integer number (6827220).

Almost surely, 2^52149947 is an apocalyptic number.

52149947 is a deficient number, since it is larger than the sum of its proper divisors (2467813).

52149947 is a wasteful number, since it uses less digits than its factorization.

52149947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8373.

The product of its digits is 90720, while the sum is 41.

The square root of 52149947 is about 7221.4920203515. The cubic root of 52149947 is about 373.6095398792.

The spelling of 52149947 in words is "fifty-two million, one hundred forty-nine thousand, nine hundred forty-seven".