49661583 has 16 divisors (see below), whose sum is σ = 67706496. Its totient is φ = 32366880.

The previous prime is 49661561. The next prime is 49661587. The reversal of 49661583 is 38516694.

It is not a de Polignac number, because 49661583 - 2⁸ = 49661327 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49661587) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 86688 + ... + 87258.

It is an arithmetic number, because the mean of its divisors is an integer number (4231656).

Almost surely, 2^49661583 is an apocalyptic number.

49661583 is a deficient number, since it is larger than the sum of its proper divisors (18044913).

49661583 is a wasteful number, since it uses less digits than its factorization.

49661583 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1174.

The product of its digits is 155520, while the sum is 42.

The square root of 49661583 is about 7047.0974876186. The cubic root of 49661583 is about 367.5701083331.

The spelling of 49661583 in words is "forty-nine million, six hundred sixty-one thousand, five hundred eighty-three".