49885278 has 16 divisors (see below), whose sum is σ = 103211280. Its totient is φ = 16054976.

The previous prime is 49885273. The next prime is 49885291. The reversal of 49885278 is 87258894.

It is a happy number.

It is a super-2 number, since 2×49885278² = 4977081922274568, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 49885278.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49885273) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 143175 + ... + 143522.

It is an arithmetic number, because the mean of its divisors is an integer number (6450705).

Almost surely, 2^49885278 is an apocalyptic number.

49885278 is an abundant number, since it is smaller than the sum of its proper divisors (53326002).

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

49885278 is a wasteful number, since it uses less digits than its factorization.

49885278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286731.

The product of its digits is 1290240, while the sum is 51.

The square root of 49885278 is about 7062.9510829398. The cubic root of 49885278 is about 368.1211744543.

The spelling of 49885278 in words is "forty-nine million, eight hundred eighty-five thousand, two hundred seventy-eight".