53239957 has 8 divisors (see below), whose sum is σ = 56138400. Its totient is φ = 50351184.

The previous prime is 53239933. The next prime is 53239999. The reversal of 53239957 is 75993235.

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 53239957 - 2⁷ = 53239829 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 (53239057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10794 + ... + 14932.

It is an arithmetic number, because the mean of its divisors is an integer number (7017300).

Almost surely, 2^53239957 is an apocalyptic number.

It is an amenable number.

53239957 is a deficient number, since it is larger than the sum of its proper divisors (2898443).

53239957 is a wasteful number, since it uses less digits than its factorization.

53239957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4835.

The product of its digits is 255150, while the sum is 43.

The square root of 53239957 is about 7296.5715921931. The cubic root of 53239957 is about 376.1946069893.

The spelling of 53239957 in words is "fifty-three million, two hundred thirty-nine thousand, nine hundred fifty-seven".