49513986 has 48 divisors (see below), whose sum is σ = 112694400. Its totient is φ = 15681600.

The previous prime is 49513973. The next prime is 49514033. The reversal of 49513986 is 68931594.

It is a happy number.

49513986 is a `hidden beast` number, since 49 + 513 + 98 + 6 = 666.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 82086 + ... + 82686.

It is an arithmetic number, because the mean of its divisors is an integer number (2347800).

Almost surely, 2^49513986 is an apocalyptic number.

49513986 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 49513986, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56347200).

49513986 is an abundant number, since it is smaller than the sum of its proper divisors (63180414).

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

49513986 is a wasteful number, since it uses less digits than its factorization.

49513986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 831 (or 828 counting only the distinct ones).

The product of its digits is 233280, while the sum is 45.

The square root of 49513986 is about 7036.6175112763. The cubic root of 49513986 is about 367.2056006807.

The spelling of 49513986 in words is "forty-nine million, five hundred thirteen thousand, nine hundred eighty-six".