49812500 has 42 divisors (see below), whose sum is σ = 109100166. Its totient is φ = 19900000.

The previous prime is 49812491. The next prime is 49812523. The reversal of 49812500 is 521894.

It can be written as a sum of positive squares in 7 ways, for example, as 49730704 + 81796 = 7052^2 + 286^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 62102 + ... + 62898.

It is an arithmetic number, because the mean of its divisors is an integer number (2597623).

Almost surely, 2^49812500 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 49812500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54550083).

49812500 is an abundant number, since it is smaller than the sum of its proper divisors (59287666).

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

49812500 is an frugal number, since it uses more digits than its factorization.

49812500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 831 (or 804 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 49812500 is about 7057.7971067466. The cubic root of 49812500 is about 367.9420690946.

The spelling of 49812500 in words is "forty-nine million, eight hundred twelve thousand, five hundred".