53699890 has 32 divisors (see below), whose sum is σ = 102539520. Its totient is φ = 20191104.

The previous prime is 53699887. The next prime is 53699903. The reversal of 53699890 is 9899635.

53699890 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 15 ways as a sum of consecutive naturals, for example, 24999 + ... + 27061.

It is an arithmetic number, because the mean of its divisors is an integer number (3204360).

Almost surely, 2^53699890 is an apocalyptic number.

53699890 is a deficient number, since it is larger than the sum of its proper divisors (48839630).

53699890 is a wasteful number, since it uses less digits than its factorization.

53699890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2226.

The product of its (nonzero) digits is 524880, while the sum is 49.

The square root of 53699890 is about 7328.0208787912. The cubic root of 53699890 is about 377.2748009933.

The spelling of 53699890 in words is "fifty-three million, six hundred ninety-nine thousand, eight hundred ninety".