51023004 has 12 divisors (see below), whose sum is σ = 119053704. Its totient is φ = 17007664.

The previous prime is 51022997. The next prime is 51023053. The reversal of 51023004 is 40032015.

It is a tau number, because it is divible by the number of its divisors (12).

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, 2125947 + ... + 2125970.

It is an arithmetic number, because the mean of its divisors is an integer number (9921142).

Almost surely, 2^51023004 is an apocalyptic number.

It is an amenable number.

51023004 is an abundant number, since it is smaller than the sum of its proper divisors (68030700).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51023004 is a wasteful number, since it uses less digits than its factorization.

51023004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4251924 (or 4251922 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 51023004 is about 7143.0388491174. The cubic root of 51023004 is about 370.8987258777.

Adding to 51023004 its reverse (40032015), we get a palindrome (91055019).

The spelling of 51023004 in words is "fifty-one million, twenty-three thousand, four".