49405500 has 72 divisors (see below), whose sum is σ = 155872080. Its totient is φ = 13173600.

The previous prime is 49405493. The next prime is 49405511. The reversal of 49405500 is 550494.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 990 + ... + 9989.

It is an arithmetic number, because the mean of its divisors is an integer number (2164890).

Almost surely, 2^49405500 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 49405500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77936040).

49405500 is an abundant number, since it is smaller than the sum of its proper divisors (106466580).

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

49405500 is a wasteful number, since it uses less digits than its factorization.

49405500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11004 (or 10989 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 49405500 is about 7028.9046088278. The cubic root of 49405500 is about 366.9372199681.

Adding to 49405500 its reverse (550494), we get a palindrome (49955994).

It can be divided in two parts, 4940 and 5500, that added together give a triangular number (10440 = T₁₄₄).

The spelling of 49405500 in words is "forty-nine million, four hundred five thousand, five hundred".