51133087 has 2 divisors, whose sum is σ = 51133088. Its totient is φ = 51133086.

The previous prime is 51133031. The next prime is 51133097. The reversal of 51133087 is 78033115.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51133087 - 2⁷ = 51132959 is a prime.

It is a super-2 number, since 2×51133087² = 5229185172299138, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51133007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25566543 + 25566544.

It is an arithmetic number, because the mean of its divisors is an integer number (25566544).

Almost surely, 2^51133087 is an apocalyptic number.

51133087 is a deficient number, since it is larger than the sum of its proper divisors (1).

51133087 is an equidigital number, since it uses as much as digits as its factorization.

51133087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 51133087 is about 7150.7403113244. The cubic root of 51133087 is about 371.1652743809.

Adding to 51133087 its sum of digits (28), we get a palindrome (51133115).

The spelling of 51133087 in words is "fifty-one million, one hundred thirty-three thousand, eighty-seven".