51240074 has 16 divisors (see below), whose sum is σ = 85665600. Its totient is φ = 22843584.

The previous prime is 51240073. The next prime is 51240097. The reversal of 51240074 is 47004215.

51240074 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (51240073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39014 + ... + 40305.

It is an arithmetic number, because the mean of its divisors is an integer number (5354100).

Almost surely, 2^51240074 is an apocalyptic number.

51240074 is a deficient number, since it is larger than the sum of its proper divisors (34425526).

51240074 is a wasteful number, since it uses less digits than its factorization.

51240074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79357.

The product of its (nonzero) digits is 1120, while the sum is 23.

The square root of 51240074 is about 7158.2172361559. The cubic root of 51240074 is about 371.4239600865.

Adding to 51240074 its reverse (47004215), we get a palindrome (98244289).

The spelling of 51240074 in words is "fifty-one million, two hundred forty thousand, seventy-four".