51537019 has 2 divisors, whose sum is σ = 51537020. Its totient is φ = 51537018.

The previous prime is 51537001. The next prime is 51537029. The reversal of 51537019 is 91073515.

51537019 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51537019 - 2¹¹ = 51534971 is a prime.

It is a super-2 number, since 2×51537019² = 5312128654812722, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (51537029) 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, 25768509 + 25768510.

It is an arithmetic number, because the mean of its divisors is an integer number (25768510).

Almost surely, 2^51537019 is an apocalyptic number.

51537019 is a deficient number, since it is larger than the sum of its proper divisors (1).

51537019 is an equidigital number, since it uses as much as digits as its factorization.

51537019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4725, while the sum is 31.

The square root of 51537019 is about 7178.9288198171. The cubic root of 51537019 is about 372.1400670181.

The spelling of 51537019 in words is "fifty-one million, five hundred thirty-seven thousand, nineteen".