49179521 has 8 divisors (see below), whose sum is σ = 52535304. Its totient is φ = 45875200.

The previous prime is 49179517. The next prime is 49179523. The reversal of 49179521 is 12597194.

It can be written as a sum of positive squares in 4 ways, for example, as 15713296 + 33466225 = 3964^2 + 5785^2 .

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 49179521 - 2² = 49179517 is a prime.

It is not an unprimeable number, because it can be changed into a prime (49179523) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10880 + ... + 14721.

It is an arithmetic number, because the mean of its divisors is an integer number (6566913).

Almost surely, 2^49179521 is an apocalyptic number.

It is an amenable number.

49179521 is a deficient number, since it is larger than the sum of its proper divisors (3355783).

49179521 is a wasteful number, since it uses less digits than its factorization.

49179521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25731.

The product of its digits is 22680, while the sum is 38.

The square root of 49179521 is about 7012.8112052158. The cubic root of 49179521 is about 366.3769122236.

The spelling of 49179521 in words is "forty-nine million, one hundred seventy-nine thousand, five hundred twenty-one".