53248957 has 4 divisors (see below), whose sum is σ = 54688156. Its totient is φ = 51809760.

The previous prime is 53248939. The next prime is 53248969. The reversal of 53248957 is 75984235.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 75984235 = 5 ⋅15196847.

It can be written as a sum of positive squares in 2 ways, for example, as 40780996 + 12467961 = 6386^2 + 3531^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53248957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53248907) 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, 719544 + ... + 719617.

It is an arithmetic number, because the mean of its divisors is an integer number (13672039).

Almost surely, 2^53248957 is an apocalyptic number.

It is an amenable number.

53248957 is a deficient number, since it is larger than the sum of its proper divisors (1439199).

53248957 is a wasteful number, since it uses less digits than its factorization.

53248957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1439198.

The product of its digits is 302400, while the sum is 43.

The square root of 53248957 is about 7297.1882941308. The cubic root of 53248957 is about 376.2158038552.

The spelling of 53248957 in words is "fifty-three million, two hundred forty-eight thousand, nine hundred fifty-seven".