53125571 has 4 divisors (see below), whose sum is σ = 53996544. Its totient is φ = 52254600.

The previous prime is 53125543. The next prime is 53125591. The reversal of 53125571 is 17552135.

It is a happy number.

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 53125571 - 2⁶ = 53125507 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53125591) 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, 435395 + ... + 435516.

It is an arithmetic number, because the mean of its divisors is an integer number (13499136).

Almost surely, 2^53125571 is an apocalyptic number.

53125571 is a deficient number, since it is larger than the sum of its proper divisors (870973).

53125571 is an equidigital number, since it uses as much as digits as its factorization.

53125571 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 870972.

The product of its digits is 5250, while the sum is 29.

The square root of 53125571 is about 7288.7290387282. The cubic root of 53125571 is about 375.9249958850.

The spelling of 53125571 in words is "fifty-three million, one hundred twenty-five thousand, five hundred seventy-one".