49421500 has 48 divisors (see below), whose sum is σ = 109156320. Its totient is φ = 19545600.

The previous prime is 49421497. The next prime is 49421501. The reversal of 49421500 is 512494.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49421501) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47991 + ... + 49009.

It is an arithmetic number, because the mean of its divisors is an integer number (2274090).

Almost surely, 2^49421500 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 49421500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54578160).

49421500 is an abundant number, since it is smaller than the sum of its proper divisors (59734820).

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

49421500 is a wasteful number, since it uses less digits than its factorization.

49421500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1135 (or 1123 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 49421500 is about 7030.0426741237. The cubic root of 49421500 is about 366.9768266371.

Adding to 49421500 its reverse (512494), we get a palindrome (49933994).

The spelling of 49421500 in words is "forty-nine million, four hundred twenty-one thousand, five hundred".