51030555 has 8 divisors (see below), whose sum is σ = 81648912. Its totient is φ = 27216288.

The previous prime is 51030533. The next prime is 51030569. The reversal of 51030555 is 55503015.

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

It is not a de Polignac number, because 51030555 - 2¹¹ = 51028507 is a prime.

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, 1701004 + ... + 1701033.

It is an arithmetic number, because the mean of its divisors is an integer number (10206114).

Almost surely, 2^51030555 is an apocalyptic number.

51030555 is a deficient number, since it is larger than the sum of its proper divisors (30618357).

51030555 is a wasteful number, since it uses less digits than its factorization.

51030555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3402045.

The product of its (nonzero) digits is 1875, while the sum is 24.

The square root of 51030555 is about 7143.5673861174. The cubic root of 51030555 is about 370.9170216653.

The spelling of 51030555 in words is "fifty-one million, thirty thousand, five hundred fifty-five".