53731806 has 16 divisors (see below), whose sum is σ = 108978048. Its totient is φ = 17658200.

The previous prime is 53731801. The next prime is 53731813. The reversal of 53731806 is 60813735.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53731801) 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, 62640 + ... + 63491.

It is an arithmetic number, because the mean of its divisors is an integer number (6811128).

Almost surely, 2^53731806 is an apocalyptic number.

53731806 is an abundant number, since it is smaller than the sum of its proper divisors (55246242).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

53731806 is a wasteful number, since it uses less digits than its factorization.

53731806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126207.

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 53731806 is about 7330.1982237863. The cubic root of 53731806 is about 377.3495293762.

The spelling of 53731806 in words is "fifty-three million, seven hundred thirty-one thousand, eight hundred six".