51581962 has 8 divisors (see below), whose sum is σ = 80737056. Its totient is φ = 24669612.

The previous prime is 51581951. The next prime is 51581963. The reversal of 51581962 is 26918515.

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

It is not an unprimeable number, because it can be changed into a prime (51581963) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 560628 + ... + 560719.

It is an arithmetic number, because the mean of its divisors is an integer number (10092132).

Almost surely, 2^51581962 is an apocalyptic number.

51581962 is a deficient number, since it is larger than the sum of its proper divisors (29155094).

51581962 is a wasteful number, since it uses less digits than its factorization.

51581962 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1121372.

The product of its digits is 21600, while the sum is 37.

The square root of 51581962 is about 7182.0583400582. The cubic root of 51581962 is about 372.2482108468.

The spelling of 51581962 in words is "fifty-one million, five hundred eighty-one thousand, nine hundred sixty-two".