51276616 has 8 divisors (see below), whose sum is σ = 96143670. Its totient is φ = 25638304.

The previous prime is 51276613. The next prime is 51276619. The reversal of 51276616 is 61667215.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (51276613) and next prime (51276619).

It can be written as a sum of positive squares in only one way, i.e., 43692100 + 7584516 = 6610^2 + 2754^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×51276616² = 5258582696822912, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51276613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3204781 + ... + 3204796.

Almost surely, 2^51276616 is an apocalyptic number.

It is an amenable number.

51276616 is a deficient number, since it is larger than the sum of its proper divisors (44867054).

51276616 is a wasteful number, since it uses less digits than its factorization.

51276616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6409583 (or 6409579 counting only the distinct ones).

The product of its digits is 15120, while the sum is 34.

The square root of 51276616 is about 7160.7692324219. The cubic root of 51276616 is about 371.5122331127.

The spelling of 51276616 in words is "fifty-one million, two hundred seventy-six thousand, six hundred sixteen".