51264526365253 has 16 divisors (see below), whose sum is σ = 53126202991680. Its totient is φ = 49409123456896.

The previous prime is 51264526365233. The next prime is 51264526365277. The reversal of 51264526365253 is 35256362546215.

It is not a de Polignac number, because 51264526365253 - 2²¹ = 51264524268101 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51264526365194 and 51264526365203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51264526365223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 273414825 + ... + 273602257.

It is an arithmetic number, because the mean of its divisors is an integer number (3320387686980).

Almost surely, 2^{51264526365253} is an apocalyptic number.

It is an amenable number.

51264526365253 is a deficient number, since it is larger than the sum of its proper divisors (1861676626427).

51264526365253 is a wasteful number, since it uses less digits than its factorization.

51264526365253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204116.

The product of its digits is 38880000, while the sum is 55.

The spelling of 51264526365253 in words is "fifty-one trillion, two hundred sixty-four billion, five hundred twenty-six million, three hundred sixty-five thousand, two hundred fifty-three".