53557039 has 4 divisors (see below), whose sum is σ = 53580600. Its totient is φ = 53533480.

The previous prime is 53557037. The next prime is 53557061. The reversal of 53557039 is 93075535.

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

It is a cyclic number.

It is not a de Polignac number, because 53557039 - 2¹ = 53557037 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 53556989 and 53557007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53557033) 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, 7957 + ... + 13054.

It is an arithmetic number, because the mean of its divisors is an integer number (13395150).

Almost surely, 2^53557039 is an apocalyptic number.

53557039 is a deficient number, since it is larger than the sum of its proper divisors (23561).

53557039 is a wasteful number, since it uses less digits than its factorization.

53557039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23560.

The product of its (nonzero) digits is 70875, while the sum is 37.

The square root of 53557039 is about 7318.2674862292. The cubic root of 53557039 is about 376.9399651581.

The spelling of 53557039 in words is "fifty-three million, five hundred fifty-seven thousand, thirty-nine".