49904517 has 24 divisors (see below), whose sum is σ = 72520704. Its totient is φ = 30511104.

The previous prime is 49904471. The next prime is 49904531. The reversal of 49904517 is 71540994.

It is not a de Polignac number, because 49904517 - 2¹¹ = 49902469 is a prime.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49904567) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 130108 + ... + 130490.

It is an arithmetic number, because the mean of its divisors is an integer number (3021696).

Almost surely, 2^49904517 is an apocalyptic number.

It is an amenable number.

49904517 is a deficient number, since it is larger than the sum of its proper divisors (22616187).

49904517 is a wasteful number, since it uses less digits than its factorization.

49904517 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 669 (or 656 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 39.

The square root of 49904517 is about 7064.3129177578. The cubic root of 49904517 is about 368.1684921754.

The spelling of 49904517 in words is "forty-nine million, nine hundred four thousand, five hundred seventeen".