53791990 has 16 divisors (see below), whose sum is σ = 110657952. Its totient is φ = 18442944.

The previous prime is 53791957. The next prime is 53792069. The reversal of 53791990 is 9919735.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 384159 + ... + 384298.

It is an arithmetic number, because the mean of its divisors is an integer number (6916122).

Almost surely, 2^53791990 is an apocalyptic number.

53791990 is an abundant number, since it is smaller than the sum of its proper divisors (56865962).

53791990 is a wasteful number, since it uses less digits than its factorization.

53791990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 768471.

The product of its (nonzero) digits is 76545, while the sum is 43.

The square root of 53791990 is about 7334.3022844712. The cubic root of 53791990 is about 377.4903642117.

The spelling of 53791990 in words is "fifty-three million, seven hundred ninety-one thousand, nine hundred ninety".