49128497 has 4 divisors (see below), whose sum is σ = 53594736. Its totient is φ = 44662260.

The previous prime is 49128493. The next prime is 49128571. The reversal of 49128497 is 79482194.

49128497 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 49128497 - 2² = 49128493 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49128491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2233103 + ... + 2233124.

It is an arithmetic number, because the mean of its divisors is an integer number (13398684).

Almost surely, 2^49128497 is an apocalyptic number.

It is an amenable number.

49128497 is a deficient number, since it is larger than the sum of its proper divisors (4466239).

49128497 is a wasteful number, since it uses less digits than its factorization.

49128497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4466238.

The product of its digits is 145152, while the sum is 44.

The square root of 49128497 is about 7009.1723477170. The cubic root of 49128497 is about 366.2501624169.

The spelling of 49128497 in words is "forty-nine million, one hundred twenty-eight thousand, four hundred ninety-seven".