53339591 has 4 divisors (see below), whose sum is σ = 56477232. Its totient is φ = 50201952.

The previous prime is 53339563. The next prime is 53339609. The reversal of 53339591 is 19593335.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19593335 = 5 ⋅3918667.

It is not a de Polignac number, because 53339591 - 2⁶ = 53339527 is a prime.

It is a super-2 number, since 2×53339591² = 5690223936094562, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53339521) 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, 1568795 + ... + 1568828.

It is an arithmetic number, because the mean of its divisors is an integer number (14119308).

Almost surely, 2^53339591 is an apocalyptic number.

53339591 is a deficient number, since it is larger than the sum of its proper divisors (3137641).

53339591 is a wasteful number, since it uses less digits than its factorization.

53339591 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3137640.

The product of its digits is 54675, while the sum is 38.

The square root of 53339591 is about 7303.3958539846. The cubic root of 53339591 is about 376.4291327012.

The spelling of 53339591 in words is "fifty-three million, three hundred thirty-nine thousand, five hundred ninety-one".