51530252005 has 8 divisors (see below), whose sum is σ = 61983885600. Its totient is φ = 41125812816.

The previous prime is 51530251889. The next prime is 51530252021. The reversal of 51530252005 is 50025203515.

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 51530252005 - 2¹⁷ = 51530120933 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12296295 + ... + 12300484.

It is an arithmetic number, because the mean of its divisors is an integer number (7747985700).

Almost surely, 2^51530252005 is an apocalyptic number.

It is an amenable number.

51530252005 is a deficient number, since it is larger than the sum of its proper divisors (10453633595).

51530252005 is a wasteful number, since it uses less digits than its factorization.

51530252005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24597203.

The product of its (nonzero) digits is 7500, while the sum is 28.

The spelling of 51530252005 in words is "fifty-one billion, five hundred thirty million, two hundred fifty-two thousand, five".