51441892725 has 24 divisors (see below), whose sum is σ = 87349265440. Its totient is φ = 26694169920.

The previous prime is 51441892709. The next prime is 51441892729. The reversal of 51441892725 is 52729814415.

It is not a de Polignac number, because 51441892725 - 2⁴ = 51441892709 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51441892729) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9266035 + ... + 9271584.

Almost surely, 2^51441892725 is an apocalyptic number.

It is an amenable number.

51441892725 is a deficient number, since it is larger than the sum of its proper divisors (35907372715).

51441892725 is a wasteful number, since it uses less digits than its factorization.

51441892725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18537669 (or 18537664 counting only the distinct ones).

The product of its digits is 806400, while the sum is 48.

The spelling of 51441892725 in words is "fifty-one billion, four hundred forty-one million, eight hundred ninety-two thousand, seven hundred twenty-five".