49781277 has 32 divisors (see below), whose sum is σ = 90773760. Its totient is φ = 26256960.

The previous prime is 49781261. The next prime is 49781293. The reversal of 49781277 is 77218794.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (49781261) and next prime (49781293).

It is not a de Polignac number, because 49781277 - 2⁴ = 49781261 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49781377) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7674 + ... + 12587.

It is an arithmetic number, because the mean of its divisors is an integer number (2836680).

Almost surely, 2^49781277 is an apocalyptic number.

It is an amenable number.

49781277 is a deficient number, since it is larger than the sum of its proper divisors (40992483).

49781277 is a wasteful number, since it uses less digits than its factorization.

49781277 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20290 (or 20284 counting only the distinct ones).

The product of its digits is 197568, while the sum is 45.

The square root of 49781277 is about 7055.5848092132. The cubic root of 49781277 is about 367.8651763710.

The spelling of 49781277 in words is "forty-nine million, seven hundred eighty-one thousand, two hundred seventy-seven".