49037521 has 8 divisors (see below), whose sum is σ = 54631080. Its totient is φ = 43704192.

The previous prime is 49037507. The next prime is 49037551. The reversal of 49037521 is 12573094.

It can be written as a sum of positive squares in 4 ways, for example, as 540225 + 48497296 = 735^2 + 6964^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 49037521 - 2⁵ = 49037489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49037551) 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 7 ways as a sum of consecutive naturals, for example, 64660 + ... + 65413.

It is an arithmetic number, because the mean of its divisors is an integer number (6828885).

Almost surely, 2^49037521 is an apocalyptic number.

It is an amenable number.

49037521 is a deficient number, since it is larger than the sum of its proper divisors (5593559).

49037521 is a wasteful number, since it uses less digits than its factorization.

49037521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130115.

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

The square root of 49037521 is about 7002.6795585690. The cubic root of 49037521 is about 366.0239490833.

The spelling of 49037521 in words is "forty-nine million, thirty-seven thousand, five hundred twenty-one".