51552143507 has 2 divisors, whose sum is σ = 51552143508. Its totient is φ = 51552143506.

The previous prime is 51552143453. The next prime is 51552143519. The reversal of 51552143507 is 70534125515.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51552143507 - 2²² = 51547949203 is a prime.

It is not a weakly prime, because it can be changed into another prime (51552143557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25776071753 + 25776071754.

It is an arithmetic number, because the mean of its divisors is an integer number (25776071754).

Almost surely, 2^51552143507 is an apocalyptic number.

51552143507 is a deficient number, since it is larger than the sum of its proper divisors (1).

51552143507 is an equidigital number, since it uses as much as digits as its factorization.

51552143507 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 105000, while the sum is 38.

The spelling of 51552143507 in words is "fifty-one billion, five hundred fifty-two million, one hundred forty-three thousand, five hundred seven".