51123796 has 6 divisors (see below), whose sum is σ = 89466650. Its totient is φ = 25561896.

The previous prime is 51123757. The next prime is 51123797. The reversal of 51123796 is 69732115.

It can be written as a sum of positive squares in only one way, i.e., 51122500 + 1296 = 7150^2 + 36^2 .

It is a super-2 number, since 2×51123796² = 5227285034899232, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51123797) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6390471 + ... + 6390478.

Almost surely, 2^51123796 is an apocalyptic number.

It is an amenable number.

51123796 is a deficient number, since it is larger than the sum of its proper divisors (38342854).

51123796 is a wasteful number, since it uses less digits than its factorization.

51123796 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12780953 (or 12780951 counting only the distinct ones).

The product of its digits is 11340, while the sum is 34.

The square root of 51123796 is about 7150.0906287963. The cubic root of 51123796 is about 371.1427924900.

The spelling of 51123796 in words is "fifty-one million, one hundred twenty-three thousand, seven hundred ninety-six".