53239710 has 128 divisors (see below), whose sum is σ = 145981440. Its totient is φ = 12355200.

The previous prime is 53239657. The next prime is 53239723. The reversal of 53239710 is 1793235.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 406345 + ... + 406475.

It is an arithmetic number, because the mean of its divisors is an integer number (1140480).

Almost surely, 2^53239710 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53239710, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72990720).

53239710 is an abundant number, since it is smaller than the sum of its proper divisors (92741730).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

53239710 is a wasteful number, since it uses less digits than its factorization.

53239710 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214.

The product of its (nonzero) digits is 5670, while the sum is 30.

The square root of 53239710 is about 7296.5546664162. The cubic root of 53239710 is about 376.1940252194.

The spelling of 53239710 in words is "fifty-three million, two hundred thirty-nine thousand, seven hundred ten".