51551470423 has 2 divisors, whose sum is σ = 51551470424. Its totient is φ = 51551470422.

The previous prime is 51551470391. The next prime is 51551470433. The reversal of 51551470423 is 32407415515.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51551470423 - 2⁵ = 51551470391 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51551470433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25775735211 + 25775735212.

It is an arithmetic number, because the mean of its divisors is an integer number (25775735212).

Almost surely, 2^51551470423 is an apocalyptic number.

51551470423 is a deficient number, since it is larger than the sum of its proper divisors (1).

51551470423 is an equidigital number, since it uses as much as digits as its factorization.

51551470423 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 84000, while the sum is 37.

Adding to 51551470423 its reverse (32407415515), we get a palindrome (83958885938).

The spelling of 51551470423 in words is "fifty-one billion, five hundred fifty-one million, four hundred seventy thousand, four hundred twenty-three".