49875721 has 8 divisors (see below), whose sum is σ = 58391424. Its totient is φ = 41707680.

The previous prime is 49875713. The next prime is 49875731. The reversal of 49875721 is 12757894.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 49875721 - 2³ = 49875713 is a prime.

It is not an unprimeable number, because it can be changed into a prime (49875701) 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, 86605 + ... + 87178.

It is an arithmetic number, because the mean of its divisors is an integer number (7298928).

Almost surely, 2^49875721 is an apocalyptic number.

49875721 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

It is an amenable number.

49875721 is a deficient number, since it is larger than the sum of its proper divisors (8515703).

49875721 is a wasteful number, since it uses less digits than its factorization.

49875721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173831.

The product of its digits is 141120, while the sum is 43.

The square root of 49875721 is about 7062.2744919749. The cubic root of 49875721 is about 368.0976647878.

The spelling of 49875721 in words is "forty-nine million, eight hundred seventy-five thousand, seven hundred twenty-one".