52690271 has 4 divisors (see below), whose sum is σ = 52778544. Its totient is φ = 52602000.

The previous prime is 52690241. The next prime is 52690279. The reversal of 52690271 is 17209625.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52690271 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52690279) 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, 43235 + ... + 44436.

It is an arithmetic number, because the mean of its divisors is an integer number (13194636).

Almost surely, 2^52690271 is an apocalyptic number.

52690271 is a deficient number, since it is larger than the sum of its proper divisors (88273).

52690271 is an equidigital number, since it uses as much as digits as its factorization.

52690271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88272.

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 52690271 is about 7258.8064445885. The cubic root of 52690271 is about 374.8954280271.

Adding to 52690271 its reverse (17209625), we get a palindrome (69899896).

The spelling of 52690271 in words is "fifty-two million, six hundred ninety thousand, two hundred seventy-one".