49945021 has 8 divisors (see below), whose sum is σ = 57884544. Its totient is φ = 42206640.

The previous prime is 49945019. The next prime is 49945033. The reversal of 49945021 is 12054994.

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

It is not a de Polignac number, because 49945021 - 2¹ = 49945019 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 (49945921) 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, 49750 + ... + 50743.

It is an arithmetic number, because the mean of its divisors is an integer number (7235568).

Almost surely, 2^49945021 is an apocalyptic number.

It is an amenable number.

49945021 is a deficient number, since it is larger than the sum of its proper divisors (7939523).

49945021 is a wasteful number, since it uses less digits than its factorization.

49945021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100571.

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 49945021 is about 7067.1791402228. The cubic root of 49945021 is about 368.2680707633.

The spelling of 49945021 in words is "forty-nine million, nine hundred forty-five thousand, twenty-one".