49519920 has 80 divisors (see below), whose sum is σ = 160204032. Its totient is φ = 12629760.

The previous prime is 49519913. The next prime is 49519931. The reversal of 49519920 is 2991594.

It is a tau number, because it is divible by the number of its divisors (80).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1035 + ... + 10005.

Almost surely, 2^49519920 is an apocalyptic number.

49519920 is a gapful number since it is divisible by the number (40) 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 49519920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80102016).

49519920 is an abundant number, since it is smaller than the sum of its proper divisors (110684112).

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

49519920 is a wasteful number, since it uses less digits than its factorization.

49519920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9010 (or 9004 counting only the distinct ones).

The product of its (nonzero) digits is 29160, while the sum is 39.

The square root of 49519920 is about 7037.0391500971. The cubic root of 49519920 is about 367.2202693374.

The spelling of 49519920 in words is "forty-nine million, five hundred nineteen thousand, nine hundred twenty".