53001994 has 8 divisors (see below), whose sum is σ = 81194688. Its totient is φ = 25937100.

The previous prime is 53001989. The next prime is 53002009. The reversal of 53001994 is 49910035.

53001994 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-2 number, since 2×53001994² = 5618422735952072, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 281832 + ... + 282019.

It is an arithmetic number, because the mean of its divisors is an integer number (10149336).

Almost surely, 2^53001994 is an apocalyptic number.

53001994 is a deficient number, since it is larger than the sum of its proper divisors (28192694).

53001994 is a wasteful number, since it uses less digits than its factorization.

53001994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 563900.

The product of its (nonzero) digits is 4860, while the sum is 31.

The square root of 53001994 is about 7280.2468364747. The cubic root of 53001994 is about 375.6332860761.

The spelling of 53001994 in words is "fifty-three million, one thousand, nine hundred ninety-four".