51065156 has 6 divisors (see below), whose sum is σ = 89364030. Its totient is φ = 25532576.

The previous prime is 51065137. The next prime is 51065173. The reversal of 51065156 is 65156015.

It can be written as a sum of positive squares in only one way, i.e., 43033600 + 8031556 = 6560^2 + 2834^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6383141 + ... + 6383148.

It is an arithmetic number, because the mean of its divisors is an integer number (14894005).

Almost surely, 2^51065156 is an apocalyptic number.

It is an amenable number.

51065156 is a deficient number, since it is larger than the sum of its proper divisors (38298874).

51065156 is a wasteful number, since it uses less digits than its factorization.

51065156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12766293 (or 12766291 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 29.

The square root of 51065156 is about 7145.9888049171. The cubic root of 51065156 is about 371.0008355050. Note that the first 3 decimals are identical.

The spelling of 51065156 in words is "fifty-one million, sixty-five thousand, one hundred fifty-six".