253025447 has 4 divisors (see below), whose sum is σ = 253378080. Its totient is φ = 252672816.

The previous prime is 253025431. The next prime is 253025449. The reversal of 253025447 is 744520352.

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

It is a cyclic number.

It is not a de Polignac number, because 253025447 - 2⁴ = 253025431 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 (253025449) 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, 175238 + ... + 176675.

It is an arithmetic number, because the mean of its divisors is an integer number (63344520).

Almost surely, 2^253025447 is an apocalyptic number.

253025447 is a deficient number, since it is larger than the sum of its proper divisors (352633).

253025447 is an equidigital number, since it uses as much as digits as its factorization.

253025447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 352632.

The product of its (nonzero) digits is 33600, while the sum is 32.

The square root of 253025447 is about 15906.7736200651. The cubic root of 253025447 is about 632.4915584702.

Adding to 253025447 its reverse (744520352), we get a palindrome (997545799).

The spelling of 253025447 in words is "two hundred fifty-three million, twenty-five thousand, four hundred forty-seven".