51002878 has 8 divisors (see below), whose sum is σ = 80530920. Its totient is φ = 24159240.

The previous prime is 51002869. The next prime is 51002899. The reversal of 51002878 is 87820015.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 671053 + ... + 671128.

It is an arithmetic number, because the mean of its divisors is an integer number (10066365).

Almost surely, 2^51002878 is an apocalyptic number.

51002878 is a deficient number, since it is larger than the sum of its proper divisors (29528042).

51002878 is a wasteful number, since it uses less digits than its factorization.

51002878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1342202.

The product of its (nonzero) digits is 4480, while the sum is 31.

The square root of 51002878 is about 7141.6299260043. The cubic root of 51002878 is about 370.8499525215.

The spelling of 51002878 in words is "fifty-one million, two thousand, eight hundred seventy-eight".