51505049630 has 8 divisors (see below), whose sum is σ = 92709089352. Its totient is φ = 20602019848.

The previous prime is 51505049627. The next prime is 51505049633. The reversal of 51505049630 is 3694050515.

It is an interprime number because it is at equal distance from previous prime (51505049627) and next prime (51505049633).

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51505049633) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2575252472 + ... + 2575252491.

It is an arithmetic number, because the mean of its divisors is an integer number (11588636169).

Almost surely, 2^51505049630 is an apocalyptic number.

51505049630 is a deficient number, since it is larger than the sum of its proper divisors (41204039722).

51505049630 is a wasteful number, since it uses less digits than its factorization.

51505049630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5150504970.

The product of its (nonzero) digits is 81000, while the sum is 38.

The spelling of 51505049630 in words is "fifty-one billion, five hundred five million, forty-nine thousand, six hundred thirty".