53772239 has 4 divisors (see below), whose sum is σ = 53956056. Its totient is φ = 53588424.

The previous prime is 53772227. The next prime is 53772247. The reversal of 53772239 is 93227735.

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: 93227735 = 5 ⋅18645547.

It is a cyclic number.

It is not a de Polignac number, because 53772239 - 2⁸ = 53771983 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 (53772539) 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, 91469 + ... + 92054.

It is an arithmetic number, because the mean of its divisors is an integer number (13489014).

Almost surely, 2^53772239 is an apocalyptic number.

53772239 is a deficient number, since it is larger than the sum of its proper divisors (183817).

53772239 is a wasteful number, since it uses less digits than its factorization.

53772239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183816.

The product of its digits is 79380, while the sum is 38.

The square root of 53772239 is about 7332.9556796697. The cubic root of 53772239 is about 377.4441570540. Note that the first 3 decimals are identical.

The spelling of 53772239 in words is "fifty-three million, seven hundred seventy-two thousand, two hundred thirty-nine".