51484774 has 24 divisors (see below), whose sum is σ = 85992480. Its totient is φ = 23097360.

The previous prime is 51484751. The next prime is 51484777. The reversal of 51484774 is 47748415.

It is a happy number.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51484777) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 17772 + ... + 20464.

It is an arithmetic number, because the mean of its divisors is an integer number (3583020).

Almost surely, 2^51484774 is an apocalyptic number.

51484774 is a deficient number, since it is larger than the sum of its proper divisors (34507706).

51484774 is a wasteful number, since it uses less digits than its factorization.

51484774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2796 (or 2785 counting only the distinct ones).

The product of its digits is 125440, while the sum is 40.

The square root of 51484774 is about 7175.2891230946. The cubic root of 51484774 is about 372.0142737422.

The spelling of 51484774 in words is "fifty-one million, four hundred eighty-four thousand, seven hundred seventy-four".