53992985 has 8 divisors (see below), whose sum is σ = 64849920. Its totient is φ = 43155504.

The previous prime is 53992963. The next prime is 53992987. The reversal of 53992985 is 58929935.

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

It is a cyclic number.

It is not a de Polignac number, because 53992985 - 2⁶ = 53992921 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (53992987) 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, 2174 + ... + 10616.

It is an arithmetic number, because the mean of its divisors is an integer number (8106240).

Almost surely, 2^53992985 is an apocalyptic number.

It is an amenable number.

53992985 is a deficient number, since it is larger than the sum of its proper divisors (10856935).

53992985 is a wasteful number, since it uses less digits than its factorization.

53992985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9727.

The product of its digits is 874800, while the sum is 50.

The square root of 53992985 is about 7347.9919025541. The cubic root of 53992985 is about 377.9599469520.

The spelling of 53992985 in words is "fifty-three million, nine hundred ninety-two thousand, nine hundred eighty-five".