71232253 has 2 divisors, whose sum is σ = 71232254. Its totient is φ = 71232252.

The previous prime is 71232251. The next prime is 71232299. The reversal of 71232253 is 35223217.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 71182969 + 49284 = 8437^2 + 222^2 .

It is a cyclic number.

It is not a de Polignac number, because 71232253 - 2¹ = 71232251 is a prime.

Together with 71232251, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71232251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35616126 + 35616127.

It is an arithmetic number, because the mean of its divisors is an integer number (35616127).

Almost surely, 2^71232253 is an apocalyptic number.

It is an amenable number.

71232253 is a deficient number, since it is larger than the sum of its proper divisors (1).

71232253 is an equidigital number, since it uses as much as digits as its factorization.

71232253 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2520, while the sum is 25.

The square root of 71232253 is about 8439.9202010446. The cubic root of 71232253 is about 414.5327940032.

It can be divided in two parts, 71 and 232253, that added together give a square (232324 = 482²).

The spelling of 71232253 in words is "seventy-one million, two hundred thirty-two thousand, two hundred fifty-three".