52219640 has 32 divisors (see below), whose sum is σ = 128176560. Its totient is φ = 18988800.

The previous prime is 52219621. The next prime is 52219649. The reversal of 52219640 is 4691225.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52219649) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58901 + ... + 59780.

Almost surely, 2^52219640 is an apocalyptic number.

It is an amenable number.

52219640 is an abundant number, since it is smaller than the sum of its proper divisors (75956920).

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

52219640 is a wasteful number, since it uses less digits than its factorization.

52219640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118703 (or 118699 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 52219640 is about 7226.3157971403. The cubic root of 52219640 is about 373.7758959399.

The spelling of 52219640 in words is "fifty-two million, two hundred nineteen thousand, six hundred forty".