49969521 has 32 divisors (see below), whose sum is σ = 84940800. Its totient is φ = 28440720.

The previous prime is 49969463. The next prime is 49969531. The reversal of 49969521 is 12596994.

It is not a de Polignac number, because 49969521 - 2⁷ = 49969393 is a prime.

It is not an unprimeable number, because it can be changed into a prime (49969531) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 78876 + ... + 79506.

It is an arithmetic number, because the mean of its divisors is an integer number (2654400).

Almost surely, 2^49969521 is an apocalyptic number.

It is an amenable number.

49969521 is a deficient number, since it is larger than the sum of its proper divisors (34971279).

49969521 is a wasteful number, since it uses less digits than its factorization.

49969521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1066 (or 1060 counting only the distinct ones).

The product of its digits is 174960, while the sum is 45.

The square root of 49969521 is about 7068.9122925667. The cubic root of 49969521 is about 368.3282775844.

The spelling of 49969521 in words is "forty-nine million, nine hundred sixty-nine thousand, five hundred twenty-one".