49217530 has 16 divisors (see below), whose sum is σ = 89915040. Its totient is φ = 19392912.

The previous prime is 49217527. The next prime is 49217561. The reversal of 49217530 is 3571294.

49217530 = 288² + 289² + ... + 555².

It is a junction number, because it is equal to n+sod(n) for n = 49217492 and 49217501.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36060 + ... + 37399.

It is an arithmetic number, because the mean of its divisors is an integer number (5619690).

Almost surely, 2^49217530 is an apocalyptic number.

49217530 is a deficient number, since it is larger than the sum of its proper divisors (40697510).

49217530 is a wasteful number, since it uses less digits than its factorization.

49217530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73533.

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 49217530 is about 7015.5206506716. The cubic root of 49217530 is about 366.4712742249.

The spelling of 49217530 in words is "forty-nine million, two hundred seventeen thousand, five hundred thirty".