51378602 has 16 divisors (see below), whose sum is σ = 84383424. Its totient is φ = 23268000.

The previous prime is 51378601. The next prime is 51378611. The reversal of 51378602 is 20687315.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (51378601) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2027 + ... + 10337.

It is an arithmetic number, because the mean of its divisors is an integer number (5273964).

Almost surely, 2^51378602 is an apocalyptic number.

51378602 is a deficient number, since it is larger than the sum of its proper divisors (33004822).

51378602 is a wasteful number, since it uses less digits than its factorization.

51378602 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8605.

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 51378602 is about 7167.8868573660. The cubic root of 51378602 is about 371.7583749061.

The spelling of 51378602 in words is "fifty-one million, three hundred seventy-eight thousand, six hundred two".