51613588 has 48 divisors (see below), whose sum is σ = 102142656. Its totient is φ = 22659840.

The previous prime is 51613561. The next prime is 51613589. The reversal of 51613588 is 88531615.

51613588 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51613589) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 91395 + ... + 91957.

It is an arithmetic number, because the mean of its divisors is an integer number (2127972).

Almost surely, 2^51613588 is an apocalyptic number.

It is an amenable number.

51613588 is a deficient number, since it is larger than the sum of its proper divisors (50529068).

51613588 is a wasteful number, since it uses less digits than its factorization.

51613588 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 664 (or 662 counting only the distinct ones).

The product of its digits is 28800, while the sum is 37.

The square root of 51613588 is about 7184.2597391798. The cubic root of 51613588 is about 372.3242730738.

The spelling of 51613588 in words is "fifty-one million, six hundred thirteen thousand, five hundred eighty-eight".