53947297 has 4 divisors (see below), whose sum is σ = 54107716. Its totient is φ = 53786880.

The previous prime is 53947277. The next prime is 53947301. The reversal of 53947297 is 79274935.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 39929761 + 14017536 = 6319^2 + 3744^2 .

It is a cyclic number.

It is not a de Polignac number, because 53947297 - 2¹⁵ = 53914529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53947277) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 79704 + ... + 80377.

It is an arithmetic number, because the mean of its divisors is an integer number (13526929).

Almost surely, 2^53947297 is an apocalyptic number.

It is an amenable number.

53947297 is a deficient number, since it is larger than the sum of its proper divisors (160419).

53947297 is a wasteful number, since it uses less digits than its factorization.

53947297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160418.

The product of its digits is 476280, while the sum is 46.

The square root of 53947297 is about 7344.8823680165. The cubic root of 53947297 is about 377.8533089813.

The spelling of 53947297 in words is "fifty-three million, nine hundred forty-seven thousand, two hundred ninety-seven".