49521530 has 32 divisors (see below), whose sum is σ = 93744000. Its totient is φ = 18798912.

The previous prime is 49521499. The next prime is 49521533. The reversal of 49521530 is 3512594.

It is a junction number, because it is equal to n+sod(n) for n = 49521493 and 49521502.

It is not an unprimeable number, because it can be changed into a prime (49521533) 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, 31196 + ... + 32744.

It is an arithmetic number, because the mean of its divisors is an integer number (2929500).

Almost surely, 2^49521530 is an apocalyptic number.

49521530 is a deficient number, since it is larger than the sum of its proper divisors (44222470).

49521530 is a wasteful number, since it uses less digits than its factorization.

49521530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1718.

The product of its (nonzero) digits is 5400, while the sum is 29.

The square root of 49521530 is about 7037.1535438699. The cubic root of 49521530 is about 367.2242490034.

The spelling of 49521530 in words is "forty-nine million, five hundred twenty-one thousand, five hundred thirty".