51269796 has 36 divisors (see below), whose sum is σ = 134070300. Its totient is φ = 16500288.

The previous prime is 51269791. The next prime is 51269819. The reversal of 51269796 is 69796215.

It is a happy number.

51269796 is a `hidden beast` number, since 512 + 69 + 79 + 6 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 16695396 + 34574400 = 4086^2 + 5880^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (51269791) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23511 + ... + 25598.

It is an arithmetic number, because the mean of its divisors is an integer number (3724175).

Almost surely, 2^51269796 is an apocalyptic number.

It is an amenable number.

51269796 is an abundant number, since it is smaller than the sum of its proper divisors (82800504).

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

51269796 is a wasteful number, since it uses less digits than its factorization.

51269796 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49148 (or 49143 counting only the distinct ones).

The product of its digits is 204120, while the sum is 45.

The square root of 51269796 is about 7160.2930107643. The cubic root of 51269796 is about 371.4957614994.

The spelling of 51269796 in words is "fifty-one million, two hundred sixty-nine thousand, seven hundred ninety-six".