53197994 has 8 divisors (see below), whose sum is σ = 79881120. Its totient is φ = 26570956.

The previous prime is 53197993. The next prime is 53197997. The reversal of 53197994 is 49979135.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (53197993) 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, 11564 + ... + 15495.

It is an arithmetic number, because the mean of its divisors is an integer number (9985140).

Almost surely, 2^53197994 is an apocalyptic number.

53197994 is a deficient number, since it is larger than the sum of its proper divisors (26683126).

53197994 is a wasteful number, since it uses less digits than its factorization.

53197994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28044.

The product of its digits is 306180, while the sum is 47.

The square root of 53197994 is about 7293.6954967972. The cubic root of 53197994 is about 376.0957438765.

The spelling of 53197994 in words is "fifty-three million, one hundred ninety-seven thousand, nine hundred ninety-four".