51126630 has 32 divisors (see below), whose sum is σ = 123012864. Its totient is φ = 13599456.

The previous prime is 51126617. The next prime is 51126679. The reversal of 51126630 is 3662115.

It is a super-2 number, since 2×51126630² = 5227864590313800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 51126630.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11367 + ... + 15213.

It is an arithmetic number, because the mean of its divisors is an integer number (3844152).

Almost surely, 2^51126630 is an apocalyptic number.

51126630 is an abundant number, since it is smaller than the sum of its proper divisors (71886234).

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

51126630 is a wasteful number, since it uses less digits than its factorization.

51126630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4300.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 51126630 is about 7150.2888053560. The cubic root of 51126630 is about 371.1496503483.

Adding to 51126630 its reverse (3662115), we get a palindrome (54788745).

The spelling of 51126630 in words is "fifty-one million, one hundred twenty-six thousand, six hundred thirty".