51523332547 has 2 divisors, whose sum is σ = 51523332548. Its totient is φ = 51523332546.

The previous prime is 51523332529. The next prime is 51523332551. The reversal of 51523332547 is 74523332515.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51523332547 is a prime.

It is not a weakly prime, because it can be changed into another prime (51523332577) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25761666273 + 25761666274.

It is an arithmetic number, because the mean of its divisors is an integer number (25761666274).

Almost surely, 2^51523332547 is an apocalyptic number.

51523332547 is a deficient number, since it is larger than the sum of its proper divisors (1).

51523332547 is an equidigital number, since it uses as much as digits as its factorization.

51523332547 is an evil number, because the sum of its binary digits is even.

The product of its digits is 378000, while the sum is 40.

The spelling of 51523332547 in words is "fifty-one billion, five hundred twenty-three million, three hundred thirty-two thousand, five hundred forty-seven".