51875787 has 8 divisors (see below), whose sum is σ = 72175104. Its totient is φ = 33080168.

The previous prime is 51875779. The next prime is 51875849. The reversal of 51875787 is 78757815.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 51875787 - 2³ = 51875779 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51875737) 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, 375843 + ... + 375980.

It is an arithmetic number, because the mean of its divisors is an integer number (9021888).

Almost surely, 2^51875787 is an apocalyptic number.

51875787 is a deficient number, since it is larger than the sum of its proper divisors (20299317).

51875787 is a wasteful number, since it uses less digits than its factorization.

51875787 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 751849.

The product of its digits is 548800, while the sum is 48.

The square root of 51875787 is about 7202.4847795743. The cubic root of 51875787 is about 372.9536823128.

The spelling of 51875787 in words is "fifty-one million, eight hundred seventy-five thousand, seven hundred eighty-seven".