51136485 has 8 divisors (see below), whose sum is σ = 81818400. Its totient is φ = 27272784.

The previous prime is 51136457. The next prime is 51136487. The reversal of 51136485 is 58463115.

51136485 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 51136485 - 2¹¹ = 51134437 is a prime.

It is a super-2 number, since 2×51136485² = 5229880196310450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51136487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1704535 + ... + 1704564.

It is an arithmetic number, because the mean of its divisors is an integer number (10227300).

Almost surely, 2^51136485 is an apocalyptic number.

It is an amenable number.

51136485 is a deficient number, since it is larger than the sum of its proper divisors (30681915).

51136485 is a wasteful number, since it uses less digits than its factorization.

51136485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3409107.

The product of its digits is 14400, while the sum is 33.

The square root of 51136485 is about 7150.9779051540. The cubic root of 51136485 is about 371.1734960090.

The spelling of 51136485 in words is "fifty-one million, one hundred thirty-six thousand, four hundred eighty-five".