51925081280836 has 81 divisors (see below), whose sum is σ = 93741292569981. Its totient is φ = 25166828470368.

The previous prime is 51925081280803. The next prime is 51925081280879. The reversal of 51925081280836 is 63808218052915.

The square root of 51925081280836 is 7205906.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 3304360484100 + 48620720796736 = 1817790^2 + 6972856^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 67173455346 + ... + 67173456118.

Almost surely, 2^{51925081280836} is an apocalyptic number.

51925081280836 is the 7205906-th square number.

It is an amenable number.

51925081280836 is a deficient number, since it is larger than the sum of its proper divisors (41816211289145).

51925081280836 is an frugal number, since it uses more digits than its factorization.

51925081280836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1826 (or 913 counting only the distinct ones).

The product of its (nonzero) digits is 8294400, while the sum is 58.

The spelling of 51925081280836 in words is "fifty-one trillion, nine hundred twenty-five billion, eighty-one million, two hundred eighty thousand, eight hundred thirty-six".