49697529 has 16 divisors (see below), whose sum is σ = 77015040. Its totient is φ = 27916560.

The previous prime is 49697519. The next prime is 49697563. The reversal of 49697529 is 92579694.

It is not a de Polignac number, because 49697529 - 2¹⁵ = 49664761 is a prime.

It is not an unprimeable number, because it can be changed into a prime (49697509) 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, 18817 + ... + 21294.

It is an arithmetic number, because the mean of its divisors is an integer number (4813440).

Almost surely, 2^49697529 is an apocalyptic number.

It is an amenable number.

49697529 is a deficient number, since it is larger than the sum of its proper divisors (27317511).

49697529 is a wasteful number, since it uses less digits than its factorization.

49697529 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40180.

The product of its digits is 1224720, while the sum is 51.

The square root of 49697529 is about 7049.6474379929. The cubic root of 49697529 is about 367.6587716937.

The spelling of 49697529 in words is "forty-nine million, six hundred ninety-seven thousand, five hundred twenty-nine".