49561864 has 32 divisors (see below), whose sum is σ = 102326400. Its totient is φ = 22317120.

The previous prime is 49561847. The next prime is 49561871. The reversal of 49561864 is 46816594.

It is a self number, because there is not a number n which added to its sum of digits gives 49561864.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7009 + ... + 12175.

It is an arithmetic number, because the mean of its divisors is an integer number (3197700).

Almost surely, 2^49561864 is an apocalyptic number.

49561864 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 49561864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51163200).

49561864 is an abundant number, since it is smaller than the sum of its proper divisors (52764536).

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

49561864 is a wasteful number, since it uses less digits than its factorization.

49561864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5293 (or 5289 counting only the distinct ones).

The product of its digits is 207360, while the sum is 43.

The square root of 49561864 is about 7040.0187499750. The cubic root of 49561864 is about 367.3239201528.

The spelling of 49561864 in words is "forty-nine million, five hundred sixty-one thousand, eight hundred sixty-four".