51905156 has 24 divisors (see below), whose sum is σ = 92423520. Its totient is φ = 25502400.

The previous prime is 51905153. The next prime is 51905201. The reversal of 51905156 is 65150915.

It is not an unprimeable number, because it can be changed into a prime (51905153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74771 + ... + 75461.

It is an arithmetic number, because the mean of its divisors is an integer number (3850980).

Almost surely, 2^51905156 is an apocalyptic number.

It is an amenable number.

51905156 is a deficient number, since it is larger than the sum of its proper divisors (40518364).

51905156 is a wasteful number, since it uses less digits than its factorization.

51905156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 995 (or 993 counting only the distinct ones).

The product of its (nonzero) digits is 6750, while the sum is 32.

The square root of 51905156 is about 7204.5233013712. The cubic root of 51905156 is about 373.0240504681.

The spelling of 51905156 in words is "fifty-one million, nine hundred five thousand, one hundred fifty-six".