51051536 has 20 divisors (see below), whose sum is σ = 103213632. Its totient is φ = 24415776.

The previous prime is 51051523. The next prime is 51051547. The reversal of 51051536 is 63515015.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68996 + ... + 69731.

Almost surely, 2^51051536 is an apocalyptic number.

It is an amenable number.

51051536 is an abundant number, since it is smaller than the sum of its proper divisors (52162096).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51051536 is a wasteful number, since it uses less digits than its factorization.

51051536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138758 (or 138752 counting only the distinct ones).

The product of its (nonzero) digits is 2250, while the sum is 26.

The square root of 51051536 is about 7145.0357591827. The cubic root of 51051536 is about 370.9678483628.

The spelling of 51051536 in words is "fifty-one million, fifty-one thousand, five hundred thirty-six".