51055630 has 32 divisors (see below), whose sum is σ = 97956864. Its totient is φ = 19114656.

The previous prime is 51055553. The next prime is 51055643. The reversal of 51055630 is 3655015.

It is a junction number, because it is equal to n+sod(n) for n = 51055595 and 51055604.

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, 8449 + ... + 13171.

It is an arithmetic number, because the mean of its divisors is an integer number (3061152).

Almost surely, 2^51055630 is an apocalyptic number.

51055630 is a deficient number, since it is larger than the sum of its proper divisors (46901234).

51055630 is a wasteful number, since it uses less digits than its factorization.

51055630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4800.

The product of its (nonzero) digits is 2250, while the sum is 25.

The square root of 51055630 is about 7145.3222460572. The cubic root of 51055630 is about 370.9777644978.

The spelling of 51055630 in words is "fifty-one million, fifty-five thousand, six hundred thirty".