253608061 has 4 divisors (see below), whose sum is σ = 289837792. Its totient is φ = 217378332.

The previous prime is 253608013. The next prime is 253608079. The reversal of 253608061 is 160806352.

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 253608061 - 2²⁷ = 119390333 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 (253608361) 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, 18114855 + ... + 18114868.

It is an arithmetic number, because the mean of its divisors is an integer number (72459448).

Almost surely, 2^253608061 is an apocalyptic number.

It is an amenable number.

253608061 is a deficient number, since it is larger than the sum of its proper divisors (36229731).

253608061 is an equidigital number, since it uses as much as digits as its factorization.

253608061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36229730.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 253608061 is about 15925.0764833328. The cubic root of 253608061 is about 632.9766427029.

The spelling of 253608061 in words is "two hundred fifty-three million, six hundred eight thousand, sixty-one".