49977773 has 4 divisors (see below), whose sum is σ = 52917660. Its totient is φ = 47037888.

The previous prime is 49977769. The next prime is 49977791. The reversal of 49977773 is 37777994.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 36457444 + 13520329 = 6038^2 + 3677^2 .

It is a cyclic number.

It is not a de Polignac number, because 49977773 - 2² = 49977769 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49977743) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1469918 + ... + 1469951.

It is an arithmetic number, because the mean of its divisors is an integer number (13229415).

Almost surely, 2^49977773 is an apocalyptic number.

It is an amenable number.

49977773 is a deficient number, since it is larger than the sum of its proper divisors (2939887).

49977773 is a wasteful number, since it uses less digits than its factorization.

49977773 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2939886.

The product of its digits is 2333772, while the sum is 53.

The square root of 49977773 is about 7069.4959509147. The cubic root of 49977773 is about 368.3485517942.

The spelling of 49977773 in words is "forty-nine million, nine hundred seventy-seven thousand, seven hundred seventy-three".