253543061 has 4 divisors (see below), whose sum is σ = 254358624. Its totient is φ = 252727500.

The previous prime is 253543039. The next prime is 253543067. The reversal of 253543061 is 160345352.

253543061 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 253543061 - 2⁶ = 253542997 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253543067) 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, 407315 + ... + 407936.

It is an arithmetic number, because the mean of its divisors is an integer number (63589656).

Almost surely, 2^253543061 is an apocalyptic number.

It is an amenable number.

253543061 is a deficient number, since it is larger than the sum of its proper divisors (815563).

253543061 is an equidigital number, since it uses as much as digits as its factorization.

253543061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 815562.

The product of its (nonzero) digits is 10800, while the sum is 29.

The square root of 253543061 is about 15923.0355460258. The cubic root of 253543061 is about 632.9225605664.

The spelling of 253543061 in words is "two hundred fifty-three million, five hundred forty-three thousand, sixty-one".