51219484 has 12 divisors (see below), whose sum is σ = 89815824. Its totient is φ = 25557824.

The previous prime is 51219473. The next prime is 51219491. The reversal of 51219484 is 48491215.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10717 + ... + 14740.

It is an arithmetic number, because the mean of its divisors is an integer number (7484652).

Almost surely, 2^51219484 is an apocalyptic number.

It is an amenable number.

51219484 is a deficient number, since it is larger than the sum of its proper divisors (38596340).

51219484 is a wasteful number, since it uses less digits than its factorization.

51219484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25964 (or 25962 counting only the distinct ones).

The product of its digits is 11520, while the sum is 34.

The square root of 51219484 is about 7156.7788843865. The cubic root of 51219484 is about 371.3742031721.

The spelling of 51219484 in words is "fifty-one million, two hundred nineteen thousand, four hundred eighty-four".