51123004 has 12 divisors (see below), whose sum is σ = 89621784. Its totient is φ = 25516784.

The previous prime is 51122987. The next prime is 51123031. The reversal of 51123004 is 40032115.

It is a super-2 number, since 2×51123004² = 5227123075968032, which contains 22 as substring.

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, 8539 + ... + 13234.

It is an arithmetic number, because the mean of its divisors is an integer number (7468482).

Almost surely, 2^51123004 is an apocalyptic number.

It is an amenable number.

51123004 is a deficient number, since it is larger than the sum of its proper divisors (38498780).

51123004 is a wasteful number, since it uses less digits than its factorization.

51123004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22364 (or 22362 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 51123004 is about 7150.0352446684. The cubic root of 51123004 is about 371.1408759226.

Adding to 51123004 its reverse (40032115), we get a palindrome (91155119).

The spelling of 51123004 in words is "fifty-one million, one hundred twenty-three thousand, four".