53725239 has 12 divisors (see below), whose sum is σ = 78039000. Its totient is φ = 35615664.

The previous prime is 53725229. The next prime is 53725241. The reversal of 53725239 is 93252735.

It is not a de Polignac number, because 53725239 - 2¹¹ = 53723191 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53725229) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15064 + ... + 18285.

It is an arithmetic number, because the mean of its divisors is an integer number (6503250).

Almost surely, 2^53725239 is an apocalyptic number.

53725239 is a deficient number, since it is larger than the sum of its proper divisors (24313761).

53725239 is a wasteful number, since it uses less digits than its factorization.

53725239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33534 (or 33531 counting only the distinct ones).

The product of its digits is 56700, while the sum is 36.

The square root of 53725239 is about 7329.7502685972. The cubic root of 53725239 is about 377.3341557673.

The spelling of 53725239 in words is "fifty-three million, seven hundred twenty-five thousand, two hundred thirty-nine".