49177813 has 4 divisors (see below), whose sum is σ = 49191840. Its totient is φ = 49163788.

The previous prime is 49177801. The next prime is 49177859. The reversal of 49177813 is 31877194.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 49177813 - 2⁵ = 49177781 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 (49177883) 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, 3408 + ... + 10486.

It is an arithmetic number, because the mean of its divisors is an integer number (12297960).

Almost surely, 2^49177813 is an apocalyptic number.

It is an amenable number.

49177813 is a deficient number, since it is larger than the sum of its proper divisors (14027).

49177813 is an equidigital number, since it uses as much as digits as its factorization.

49177813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14026.

The product of its digits is 42336, while the sum is 40.

The square root of 49177813 is about 7012.6894270315. The cubic root of 49177813 is about 366.3726707629.

The spelling of 49177813 in words is "forty-nine million, one hundred seventy-seven thousand, eight hundred thirteen".