49689549 has 48 divisors (see below), whose sum is σ = 89107200. Its totient is φ = 26136864.

The previous prime is 49689547. The next prime is 49689571. The reversal of 49689549 is 94598694.

49689549 = T₃₁₂ + T₃₁₃ + ... + T₆₈₉.

49689549 is a `hidden beast` number, since 4 + 96 + 8 + 9 + 549 = 666.

It is not a de Polignac number, because 49689549 - 2¹ = 49689547 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 49689495 and 49689504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49689547) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 138232 + ... + 138590.

It is an arithmetic number, because the mean of its divisors is an integer number (1856400).

Almost surely, 2^49689549 is an apocalyptic number.

It is an amenable number.

49689549 is a deficient number, since it is larger than the sum of its proper divisors (39417651).

49689549 is a wasteful number, since it uses less digits than its factorization.

49689549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 411 (or 382 counting only the distinct ones).

The product of its digits is 2799360, while the sum is 54.

The square root of 49689549 is about 7049.0814295197. The cubic root of 49689549 is about 367.6390921503.

The spelling of 49689549 in words is "forty-nine million, six hundred eighty-nine thousand, five hundred forty-nine".