51375004 has 12 divisors (see below), whose sum is σ = 89994184. Its totient is φ = 25662384.

The previous prime is 51375001. The next prime is 51375013. The reversal of 51375004 is 40057315.

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 51375004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51375001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1227 + ... + 10210.

Almost surely, 2^51375004 is an apocalyptic number.

It is an amenable number.

51375004 is a deficient number, since it is larger than the sum of its proper divisors (38619180).

51375004 is a wasteful number, since it uses less digits than its factorization.

51375004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12564 (or 12562 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 25.

The square root of 51375004 is about 7167.6358724478. The cubic root of 51375004 is about 371.7496967288.

The spelling of 51375004 in words is "fifty-one million, three hundred seventy-five thousand, four".