49933581 has 4 divisors (see below), whose sum is σ = 66578112. Its totient is φ = 33289052.

The previous prime is 49933561. The next prime is 49933601. The reversal of 49933581 is 18533994.

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.

It is an interprime number because it is at equal distance from previous prime (49933561) and next prime (49933601).

It is a cyclic number.

It is not a de Polignac number, because 49933581 - 2⁵ = 49933549 is a prime.

It is a super-2 number, since 2×49933581² = 4986725022967122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49933561) 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, 8322261 + ... + 8322266.

It is an arithmetic number, because the mean of its divisors is an integer number (16644528).

Almost surely, 2^49933581 is an apocalyptic number.

It is an amenable number.

49933581 is a deficient number, since it is larger than the sum of its proper divisors (16644531).

49933581 is a wasteful number, since it uses less digits than its factorization.

49933581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16644530.

The product of its digits is 116640, while the sum is 42.

The square root of 49933581 is about 7066.3697186037. The cubic root of 49933581 is about 368.2399511206.

The spelling of 49933581 in words is "forty-nine million, nine hundred thirty-three thousand, five hundred eighty-one".