53425491 has 16 divisors (see below), whose sum is σ = 81652224. Its totient is φ = 30438144.

The previous prime is 53425487. The next prime is 53425499. The reversal of 53425491 is 19452435.

It is not a de Polignac number, because 53425491 - 2² = 53425487 is a prime.

It is not an unprimeable number, because it can be changed into a prime (53425499) 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, 3810 + ... + 11016.

It is an arithmetic number, because the mean of its divisors is an integer number (5103264).

Almost surely, 2^53425491 is an apocalyptic number.

53425491 is a deficient number, since it is larger than the sum of its proper divisors (28226733).

53425491 is a wasteful number, since it uses less digits than its factorization.

53425491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7570.

The product of its digits is 21600, while the sum is 33.

The square root of 53425491 is about 7309.2743141847. The cubic root of 53425491 is about 376.6310960049.

The spelling of 53425491 in words is "fifty-three million, four hundred twenty-five thousand, four hundred ninety-one".