48187491 has 16 divisors (see below), whose sum is σ = 70208640. Its totient is φ = 29155520.

The previous prime is 48187481. The next prime is 48187523. The reversal of 48187491 is 19478184.

It is a cyclic number.

It is not a de Polignac number, because 48187491 - 2⁵ = 48187459 is a prime.

It is not an unprimeable number, because it can be changed into a prime (48187471) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32911 + ... + 34343.

It is an arithmetic number, because the mean of its divisors is an integer number (4388040).

Almost surely, 2^48187491 is an apocalyptic number.

48187491 is a deficient number, since it is larger than the sum of its proper divisors (22021149).

48187491 is a wasteful number, since it uses less digits than its factorization.

48187491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2466.

The product of its digits is 64512, while the sum is 42.

The square root of 48187491 is about 6941.7210402032. The cubic root of 48187491 is about 363.8966895759.

The spelling of 48187491 in words is "forty-eight million, one hundred eighty-seven thousand, four hundred ninety-one".