51076620 has 108 divisors (see below), whose sum is σ = 180258624. Its totient is φ = 11672640.

The previous prime is 51076603. The next prime is 51076633. The reversal of 51076620 is 2667015.

It is a super-2 number, since 2×51076620² = 5217642221248800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 5925 + ... + 11715.

Almost surely, 2^51076620 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51076620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90129312).

51076620 is an abundant number, since it is smaller than the sum of its proper divisors (129182004).

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

51076620 is a wasteful number, since it uses less digits than its factorization.

51076620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5820 (or 5808 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 51076620 is about 7146.7908882239. The cubic root of 51076620 is about 371.0285963480.

The spelling of 51076620 in words is "fifty-one million, seventy-six thousand, six hundred twenty".