56149830 has 96 divisors (see below), whose sum is σ = 163088640. Its totient is φ = 13285440.

The previous prime is 56149811. The next prime is 56149871. The reversal of 56149830 is 3894165.

56149830 is a `hidden beast` number, since 5 + 614 + 9 + 8 + 30 = 666.

56149830 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is an alternating number because its digits alternate between odd and even.

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 47 ways as a sum of consecutive naturals, for example, 41911 + ... + 43229.

It is an arithmetic number, because the mean of its divisors is an integer number (1698840).

Almost surely, 2^56149830 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56149830, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81544320).

56149830 is an abundant number, since it is smaller than the sum of its proper divisors (106938810).

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

56149830 is a wasteful number, since it uses less digits than its factorization.

56149830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1386 (or 1383 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 56149830 is about 7493.3190243043. The cubic root of 56149830 is about 382.9271404148.

The spelling of 56149830 in words is "fifty-six million, one hundred forty-nine thousand, eight hundred thirty".