51152625261653 has 6 divisors (see below), whose sum is σ = 51172644563586. Its totient is φ = 51132613788432.

The previous prime is 51152625261607. The next prime is 51152625261709. The reversal of 51152625261653 is 35616252625115.

It can be written as a sum of positive squares in 3 ways, for example, as 19597071752164 + 31555553509489 = 4426858^2 + 5617433^2 .

It is not a de Polignac number, because 51152625261653 - 2⁶ = 51152625261589 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 (51152625251653) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2626451 + ... + 10450047.

It is an arithmetic number, because the mean of its divisors is an integer number (8528774093931).

Almost surely, 2^{51152625261653} is an apocalyptic number.

It is an amenable number.

51152625261653 is a deficient number, since it is larger than the sum of its proper divisors (20019301933).

51152625261653 is an frugal number, since it uses more digits than its factorization.

51152625261653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7828711 (or 7826154 counting only the distinct ones).

The product of its digits is 3240000, while the sum is 50.

Adding to 51152625261653 its reverse (35616252625115), we get a palindrome (86768877886768).

The spelling of 51152625261653 in words is "fifty-one trillion, one hundred fifty-two billion, six hundred twenty-five million, two hundred sixty-one thousand, six hundred fifty-three".