49127491 has 4 divisors (see below), whose sum is σ = 56145712. Its totient is φ = 42109272.

The previous prime is 49127473. The next prime is 49127513. The reversal of 49127491 is 19472194.

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

It is a cyclic number.

It is not a de Polignac number, because 49127491 - 2⁵ = 49127459 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 49127491.

It is not an unprimeable number, because it can be changed into a prime (49127401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3509100 + ... + 3509113.

It is an arithmetic number, because the mean of its divisors is an integer number (14036428).

Almost surely, 2^49127491 is an apocalyptic number.

49127491 is a deficient number, since it is larger than the sum of its proper divisors (7018221).

49127491 is an equidigital number, since it uses as much as digits as its factorization.

49127491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7018220.

The product of its digits is 18144, while the sum is 37.

The square root of 49127491 is about 7009.1005842405. The cubic root of 49127491 is about 366.2476625088.

It can be divided in two parts, 4912 and 7491, that added together give a triangular number (12403 = T₁₅₇).

The spelling of 49127491 in words is "forty-nine million, one hundred twenty-seven thousand, four hundred ninety-one".