51023125405 has 8 divisors (see below), whose sum is σ = 69974572032. Its totient is φ = 34987285968.

The previous prime is 51023125397. The next prime is 51023125409. The reversal of 51023125405 is 50452132015.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 51023125405 - 2³ = 51023125397 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 (51023125409) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 728901757 + ... + 728901826.

It is an arithmetic number, because the mean of its divisors is an integer number (8746821504).

Almost surely, 2^51023125405 is an apocalyptic number.

It is an amenable number.

51023125405 is a deficient number, since it is larger than the sum of its proper divisors (18951446627).

51023125405 is a wasteful number, since it uses less digits than its factorization.

51023125405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1457803595.

The product of its (nonzero) digits is 6000, while the sum is 28.

The spelling of 51023125405 in words is "fifty-one billion, twenty-three million, one hundred twenty-five thousand, four hundred five".