253632943 has 2 divisors, whose sum is σ = 253632944. Its totient is φ = 253632942.

The previous prime is 253632887. The next prime is 253632949. The reversal of 253632943 is 349236352.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-253632943 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (253632949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126816471 + 126816472.

It is an arithmetic number, because the mean of its divisors is an integer number (126816472).

Almost surely, 2^253632943 is an apocalyptic number.

253632943 is a deficient number, since it is larger than the sum of its proper divisors (1).

253632943 is an equidigital number, since it uses as much as digits as its factorization.

253632943 is an evil number, because the sum of its binary digits is even.

The product of its digits is 116640, while the sum is 37.

The square root of 253632943 is about 15925.8576849098. The cubic root of 253632943 is about 632.9973428990.

The spelling of 253632943 in words is "two hundred fifty-three million, six hundred thirty-two thousand, nine hundred forty-three".