49145550 has 48 divisors (see below), whose sum is σ = 124492032. Its totient is φ = 12824800.

The previous prime is 49145531. The next prime is 49145563. The reversal of 49145550 is 5554194.

It is a Curzon number.

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 23 ways as a sum of consecutive naturals, for example, 3565 + ... + 10535.

It is an arithmetic number, because the mean of its divisors is an integer number (2593584).

Almost surely, 2^49145550 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 49145550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62246016).

49145550 is an abundant number, since it is smaller than the sum of its proper divisors (75346482).

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

49145550 is a wasteful number, since it uses less digits than its factorization.

49145550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7033 (or 7028 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 33.

The square root of 49145550 is about 7010.3887196075. The cubic root of 49145550 is about 366.2925338978.

The spelling of 49145550 in words is "forty-nine million, one hundred forty-five thousand, five hundred fifty".