51149358 has 48 divisors (see below), whose sum is σ = 119975856. Its totient is φ = 15655680.

The previous prime is 51149339. The next prime is 51149383. The reversal of 51149358 is 85394115.

51149358 is a `hidden beast` number, since 511 + 4 + 93 + 58 = 666.

51149358 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×51149358³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 55941 + ... + 56847.

It is an arithmetic number, because the mean of its divisors is an integer number (2499497).

Almost surely, 2^51149358 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51149358, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59987928).

51149358 is an abundant number, since it is smaller than the sum of its proper divisors (68826498).

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

51149358 is a wasteful number, since it uses less digits than its factorization.

51149358 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1169 (or 1166 counting only the distinct ones).

The product of its digits is 21600, while the sum is 36.

The square root of 51149358 is about 7151.8779352000. The cubic root of 51149358 is about 371.2046395622.

The spelling of 51149358 in words is "fifty-one million, one hundred forty-nine thousand, three hundred fifty-eight".