51874287 has 8 divisors (see below), whose sum is σ = 69199104. Its totient is φ = 34566168.

The previous prime is 51874283. The next prime is 51874321. The reversal of 51874287 is 78247815.

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

It is not a de Polignac number, because 51874287 - 2² = 51874283 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51874283) 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, 9208 + ... + 13730.

It is an arithmetic number, because the mean of its divisors is an integer number (8649888).

Almost surely, 2^51874287 is an apocalyptic number.

51874287 is a deficient number, since it is larger than the sum of its proper divisors (17324817).

51874287 is a wasteful number, since it uses less digits than its factorization.

51874287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8349.

The product of its digits is 125440, while the sum is 42.

The square root of 51874287 is about 7202.3806480913. The cubic root of 51874287 is about 372.9500875984.

The spelling of 51874287 in words is "fifty-one million, eight hundred seventy-four thousand, two hundred eighty-seven".