53102239 has 4 divisors (see below), whose sum is σ = 55411056. Its totient is φ = 50793424.

The previous prime is 53102233. The next prime is 53102263. The reversal of 53102239 is 93220135.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 93220135 = 5 ⋅18644027.

It is a cyclic number.

It is not a de Polignac number, because 53102239 - 2¹³ = 53094047 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 (53102233) 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, 1154374 + ... + 1154419.

It is an arithmetic number, because the mean of its divisors is an integer number (13852764).

Almost surely, 2^53102239 is an apocalyptic number.

53102239 is a deficient number, since it is larger than the sum of its proper divisors (2308817).

53102239 is a wasteful number, since it uses less digits than its factorization.

53102239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2308816.

The product of its (nonzero) digits is 1620, while the sum is 25.

The square root of 53102239 is about 7287.1283095606. The cubic root of 53102239 is about 375.8699541779.

The spelling of 53102239 in words is "fifty-three million, one hundred two thousand, two hundred thirty-nine".