51554630 has 16 divisors (see below), whose sum is σ = 95062464. Its totient is φ = 20118720.

The previous prime is 51554623. The next prime is 51554639. The reversal of 51554630 is 3645515.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 51554593 and 51554602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51554639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62462 + ... + 63281.

It is an arithmetic number, because the mean of its divisors is an integer number (5941404).

Almost surely, 2^51554630 is an apocalyptic number.

51554630 is a deficient number, since it is larger than the sum of its proper divisors (43507834).

51554630 is a wasteful number, since it uses less digits than its factorization.

51554630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125791.

The product of its (nonzero) digits is 9000, while the sum is 29.

The square root of 51554630 is about 7180.1552907998. The cubic root of 51554630 is about 372.1824508714.

The spelling of 51554630 in words is "fifty-one million, five hundred fifty-four thousand, six hundred thirty".