49750000 has 70 divisors (see below), whose sum is σ = 121092200. Its totient is φ = 19800000.

The previous prime is 49749983. The next prime is 49750027. The reversal of 49750000 is 5794.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 249901 + ... + 250099.

Almost surely, 2^49750000 is an apocalyptic number.

49750000 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 49750000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60546100).

49750000 is an abundant number, since it is smaller than the sum of its proper divisors (71342200).

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

49750000 is an frugal number, since it uses more digits than its factorization.

49750000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237 (or 206 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 25.

The square root of 49750000 is about 7053.3679898329. The cubic root of 49750000 is about 367.7881184201.

Adding to 49750000 its reverse (5794), we get a palindrome (49755794).

The spelling of 49750000 in words is "forty-nine million, seven hundred fifty thousand".