49997800 has 24 divisors (see below), whose sum is σ = 116245350. Its totient is φ = 19999040.

The previous prime is 49997771. The next prime is 49997803. The reversal of 49997800 is 879994.

It can be written as a sum of positive squares in 3 ways, for example, as 30935844 + 19061956 = 5562^2 + 4366^2 .

It is not an unprimeable number, because it can be changed into a prime (49997803) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 124795 + ... + 125194.

Almost surely, 2^49997800 is an apocalyptic number.

49997800 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

49997800 is an abundant number, since it is smaller than the sum of its proper divisors (66247550).

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

49997800 is a wasteful number, since it uses less digits than its factorization.

49997800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250005 (or 249996 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 46.

The square root of 49997800 is about 7070.9122466624. The cubic root of 49997800 is about 368.3977465386.

The spelling of 49997800 in words is "forty-nine million, nine hundred ninety-seven thousand, eight hundred".