51894482 has 4 divisors (see below), whose sum is σ = 77841726. Its totient is φ = 25947240.

The previous prime is 51894481. The next prime is 51894487. The reversal of 51894482 is 28449815.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 50993881 + 900601 = 7141^2 + 949^2 .

It is not an unprimeable number, because it can be changed into a prime (51894481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12973619 + ... + 12973622.

Almost surely, 2^51894482 is an apocalyptic number.

51894482 is a deficient number, since it is larger than the sum of its proper divisors (25947244).

51894482 is a wasteful number, since it uses less digits than its factorization.

51894482 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25947243.

The product of its digits is 92160, while the sum is 41.

The square root of 51894482 is about 7203.7824786705. The cubic root of 51894482 is about 372.9984786239.

The spelling of 51894482 in words is "fifty-one million, eight hundred ninety-four thousand, four hundred eighty-two".