51523453261 has 8 divisors (see below), whose sum is σ = 58996539584. Its totient is φ = 44078515200.

The previous prime is 51523453253. The next prime is 51523453283. The reversal of 51523453261 is 16235432515.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 51523453261 - 2³ = 51523453253 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 51523453261.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51523453061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7033140 + ... + 7040461.

It is an arithmetic number, because the mean of its divisors is an integer number (7374567448).

Almost surely, 2^51523453261 is an apocalyptic number.

It is an amenable number.

51523453261 is a deficient number, since it is larger than the sum of its proper divisors (7473086323).

51523453261 is a wasteful number, since it uses less digits than its factorization.

51523453261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14074131.

The product of its digits is 108000, while the sum is 37.

Adding to 51523453261 its reverse (16235432515), we get a palindrome (67758885776).

The spelling of 51523453261 in words is "fifty-one billion, five hundred twenty-three million, four hundred fifty-three thousand, two hundred sixty-one".