49471521 has 16 divisors (see below), whose sum is σ = 72239040. Its totient is φ = 29865920.

The previous prime is 49471511. The next prime is 49471523. The reversal of 49471521 is 12517494.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 49471521 - 2⁵ = 49471489 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (49471523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6091 + ... + 11663.

It is an arithmetic number, because the mean of its divisors is an integer number (4514940).

Almost surely, 2^49471521 is an apocalyptic number.

It is an amenable number.

49471521 is a deficient number, since it is larger than the sum of its proper divisors (22767519).

49471521 is a wasteful number, since it uses less digits than its factorization.

49471521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5856.

The product of its digits is 10080, while the sum is 33.

The square root of 49471521 is about 7033.5994341447. The cubic root of 49471521 is about 367.1005943512.

The spelling of 49471521 in words is "forty-nine million, four hundred seventy-one thousand, five hundred twenty-one".