51032887 has 2 divisors, whose sum is σ = 51032888. Its totient is φ = 51032886.

The previous prime is 51032809. The next prime is 51032893. The reversal of 51032887 is 78823015.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51032887 - 2¹¹ = 51030839 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51032087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25516443 + 25516444.

It is an arithmetic number, because the mean of its divisors is an integer number (25516444).

Almost surely, 2^51032887 is an apocalyptic number.

51032887 is a deficient number, since it is larger than the sum of its proper divisors (1).

51032887 is an equidigital number, since it uses as much as digits as its factorization.

51032887 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13440, while the sum is 34.

The square root of 51032887 is about 7143.7306080227. The cubic root of 51032887 is about 370.9226716484.

The spelling of 51032887 in words is "fifty-one million, thirty-two thousand, eight hundred eighty-seven".