52131966 has 32 divisors (see below), whose sum is σ = 109913760. Its totient is φ = 16458624.

The previous prime is 52131949. The next prime is 52131967. The reversal of 52131966 is 66913125.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52131967) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6396 + ... + 12048.

It is an arithmetic number, because the mean of its divisors is an integer number (3434805).

Almost surely, 2^52131966 is an apocalyptic number.

52131966 is an abundant number, since it is smaller than the sum of its proper divisors (57781794).

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

52131966 is a wasteful number, since it uses less digits than its factorization.

52131966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5740.

The product of its digits is 9720, while the sum is 33.

The square root of 52131966 is about 7220.2469486853. The cubic root of 52131966 is about 373.5665954739.

The spelling of 52131966 in words is "fifty-two million, one hundred thirty-one thousand, nine hundred sixty-six".