49128355 has 4 divisors (see below), whose sum is σ = 58954032. Its totient is φ = 39302680.

The previous prime is 49128347. The next prime is 49128383. The reversal of 49128355 is 55382194.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 49128355 - 2³ = 49128347 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4912831 + ... + 4912840.

It is an arithmetic number, because the mean of its divisors is an integer number (14738508).

Almost surely, 2^49128355 is an apocalyptic number.

49128355 is a deficient number, since it is larger than the sum of its proper divisors (9825677).

49128355 is an equidigital number, since it uses as much as digits as its factorization.

49128355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9825676.

The product of its digits is 43200, while the sum is 37.

The square root of 49128355 is about 7009.1622181256. The cubic root of 49128355 is about 366.2498095492.

The spelling of 49128355 in words is "forty-nine million, one hundred twenty-eight thousand, three hundred fifty-five".