53671491 has 20 divisors (see below), whose sum is σ = 80924800. Its totient is φ = 35446896.

The previous prime is 53671481. The next prime is 53671507. The reversal of 53671491 is 19417635.

It is not a de Polignac number, because 53671491 - 2⁶ = 53671427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53671411) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 5790 + ... + 11868.

It is an arithmetic number, because the mean of its divisors is an integer number (4046240).

Almost surely, 2^53671491 is an apocalyptic number.

53671491 is a deficient number, since it is larger than the sum of its proper divisors (27253309).

53671491 is a wasteful number, since it uses less digits than its factorization.

53671491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6200 (or 6191 counting only the distinct ones).

The product of its digits is 22680, while the sum is 36.

The square root of 53671491 is about 7326.0829233636. The cubic root of 53671491 is about 377.2082824439.

It can be divided in two parts, 536 and 71491, that added together give a palindrome (72027).

The spelling of 53671491 in words is "fifty-three million, six hundred seventy-one thousand, four hundred ninety-one".