49928261 has 4 divisors (see below), whose sum is σ = 50263500. Its totient is φ = 49593024.

The previous prime is 49928231. The next prime is 49928273. The reversal of 49928261 is 16282994.

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 7756225 + 42172036 = 2785^2 + 6494^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-49928261 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 (49928231) 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, 167396 + ... + 167693.

It is an arithmetic number, because the mean of its divisors is an integer number (12565875).

Almost surely, 2^49928261 is an apocalyptic number.

It is an amenable number.

49928261 is a deficient number, since it is larger than the sum of its proper divisors (335239).

49928261 is a wasteful number, since it uses less digits than its factorization.

49928261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335238.

The product of its digits is 62208, while the sum is 41.

The square root of 49928261 is about 7065.9932776645. The cubic root of 49928261 is about 368.2268730405.

The spelling of 49928261 in words is "forty-nine million, nine hundred twenty-eight thousand, two hundred sixty-one".