49819530 has 64 divisors (see below), whose sum is σ = 123793920. Its totient is φ = 12824064.

The previous prime is 49819529. The next prime is 49819531. The reversal of 49819530 is 3591894.

It is an interprime number because it is at equal distance from previous prime (49819529) and next prime (49819531).

It is not an unprimeable number, because it can be changed into a prime (49819531) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 125292 + ... + 125688.

It is an arithmetic number, because the mean of its divisors is an integer number (1934280).

Almost surely, 2^49819530 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 49819530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61896960).

49819530 is an abundant number, since it is smaller than the sum of its proper divisors (73974390).

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

49819530 is a wasteful number, since it uses less digits than its factorization.

49819530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 543.

The product of its (nonzero) digits is 38880, while the sum is 39.

The square root of 49819530 is about 7058.2951199280. The cubic root of 49819530 is about 367.9593774079.

The spelling of 49819530 in words is "forty-nine million, eight hundred nineteen thousand, five hundred thirty".