51022982 has 4 divisors (see below), whose sum is σ = 76534476. Its totient is φ = 25511490.

The previous prime is 51022957. The next prime is 51022991. The reversal of 51022982 is 28922015.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12755744 + ... + 12755747.

It is an arithmetic number, because the mean of its divisors is an integer number (19133619).

Almost surely, 2^51022982 is an apocalyptic number.

51022982 is a deficient number, since it is larger than the sum of its proper divisors (25511494).

51022982 is a wasteful number, since it uses less digits than its factorization.

51022982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25511493.

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 51022982 is about 7143.0373091564. The cubic root of 51022982 is about 370.8986725699.

Adding to 51022982 its reverse (28922015), we get a palindrome (79944997).

The spelling of 51022982 in words is "fifty-one million, twenty-two thousand, nine hundred eighty-two".