5151878 has 4 divisors (see below), whose sum is σ = 7727820. Its totient is φ = 2575938.

The previous prime is 5151871. The next prime is 5151889. The reversal of 5151878 is 8781515.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5151871) by changing a digit.

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 as a sum of consecutive naturals, namely, 1287968 + ... + 1287971.

It is an arithmetic number, because the mean of its divisors is an integer number (1931955).

Almost surely, 2^5151878 is an apocalyptic number.

5151878 is a deficient number, since it is larger than the sum of its proper divisors (2575942).

5151878 is a wasteful number, since it uses less digits than its factorization.

5151878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2575941.

The product of its digits is 11200, while the sum is 35.

The square root of 5151878 is about 2269.7748787049. The cubic root of 5151878 is about 172.7117388700.

The spelling of 5151878 in words is "five million, one hundred fifty-one thousand, eight hundred seventy-eight".