51041100505253 has 4 divisors (see below), whose sum is σ = 52801138453740. Its totient is φ = 49281062556768.

The previous prime is 51041100505247. The next prime is 51041100505267. The reversal of 51041100505253 is 35250500114015.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 14858264948164 + 36182835557089 = 3854642^2 + 6015217^2 .

It is a cyclic number.

It is not a de Polignac number, because 51041100505253 - 2⁴² = 46643053994149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51041100504253) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 880018974200 + ... + 880018974257.

It is an arithmetic number, because the mean of its divisors is an integer number (13200284613435).

Almost surely, 2^{51041100505253} is an apocalyptic number.

It is an amenable number.

51041100505253 is a deficient number, since it is larger than the sum of its proper divisors (1760037948487).

51041100505253 is a wasteful number, since it uses less digits than its factorization.

51041100505253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1760037948486.

The product of its (nonzero) digits is 15000, while the sum is 32.

Adding to 51041100505253 its reverse (35250500114015), we get a palindrome (86291600619268).

The spelling of 51041100505253 in words is "fifty-one trillion, forty-one billion, one hundred million, five hundred five thousand, two hundred fifty-three".