51142450025 has 6 divisors (see below), whose sum is σ = 63416638062. Its totient is φ = 40913960000.

The previous prime is 51142450019. The next prime is 51142450057. The reversal of 51142450025 is 52005424115.

It can be written as a sum of positive squares in 3 ways, for example, as 4959529 + 51137490496 = 2227^2 + 226136^2 .

It is not a de Polignac number, because 51142450025 - 2²⁰ = 51141401449 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 51142450025.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1022848976 + ... + 1022849025.

It is an arithmetic number, because the mean of its divisors is an integer number (10569439677).

Almost surely, 2^51142450025 is an apocalyptic number.

It is an amenable number.

51142450025 is a deficient number, since it is larger than the sum of its proper divisors (12274188037).

51142450025 is a wasteful number, since it uses less digits than its factorization.

51142450025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2045698011 (or 2045698006 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 29.

The spelling of 51142450025 in words is "fifty-one billion, one hundred forty-two million, four hundred fifty thousand, twenty-five".