52194720 has 48 divisors (see below), whose sum is σ = 164414880. Its totient is φ = 13918464.

The previous prime is 52194713. The next prime is 52194721. The reversal of 52194720 is 2749125.

It is a tau number, because it is divible by the number of its divisors (48).

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

It is not an unprimeable number, because it can be changed into a prime (52194721) 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, 53890 + ... + 54849.

It is an arithmetic number, because the mean of its divisors is an integer number (3425310).

Almost surely, 2^52194720 is an apocalyptic number.

It is an amenable number.

52194720 is an abundant number, since it is smaller than the sum of its proper divisors (112220160).

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

52194720 is a wasteful number, since it uses less digits than its factorization.

52194720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108757 (or 108749 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 52194720 is about 7224.5913379236. The cubic root of 52194720 is about 373.7164293140.

The spelling of 52194720 in words is "fifty-two million, one hundred ninety-four thousand, seven hundred twenty".