51283511 has 2 divisors, whose sum is σ = 51283512. Its totient is φ = 51283510.

The previous prime is 51283499. The next prime is 51283523. The reversal of 51283511 is 11538215.

It is a happy number.

51283511 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a balanced prime because it is at equal distance from previous prime (51283499) and next prime (51283523).

It is a cyclic number.

It is not a de Polignac number, because 51283511 - 2¹⁰ = 51282487 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51283411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25641755 + 25641756.

It is an arithmetic number, because the mean of its divisors is an integer number (25641756).

Almost surely, 2^51283511 is an apocalyptic number.

51283511 is a deficient number, since it is larger than the sum of its proper divisors (1).

51283511 is an equidigital number, since it uses as much as digits as its factorization.

51283511 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1200, while the sum is 26.

The square root of 51283511 is about 7161.2506589282. The cubic root of 51283511 is about 371.5288843808.

The spelling of 51283511 in words is "fifty-one million, two hundred eighty-three thousand, five hundred eleven".