51887835 has 12 divisors (see below), whose sum is σ = 89938992. Its totient is φ = 27673488.

The previous prime is 51887821. The next prime is 51887861. The reversal of 51887835 is 53878815.

It is a happy number.

It is not a de Polignac number, because 51887835 - 2⁴ = 51887819 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 1153063 = 51887835 / (5 + 1 + 8 + 8 + 7 + 8 + 3 + 5).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 576487 + ... + 576576.

It is an arithmetic number, because the mean of its divisors is an integer number (7494916).

Almost surely, 2^51887835 is an apocalyptic number.

51887835 is a deficient number, since it is larger than the sum of its proper divisors (38051157).

51887835 is a wasteful number, since it uses less digits than its factorization.

51887835 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1153074 (or 1153071 counting only the distinct ones).

The product of its digits is 268800, while the sum is 45.

The square root of 51887835 is about 7203.3211090441. The cubic root of 51887835 is about 372.9825525456.

The spelling of 51887835 in words is "fifty-one million, eight hundred eighty-seven thousand, eight hundred thirty-five".