253565465 has 8 divisors (see below), whose sum is σ = 304369728. Its totient is φ = 202791600.

The previous prime is 253565441. The next prime is 253565467. The reversal of 253565465 is 564565352.

253565465 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 253565465 - 2⁸ = 253565209 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (253565467) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19634 + ... + 29876.

It is an arithmetic number, because the mean of its divisors is an integer number (38046216).

Almost surely, 2^253565465 is an apocalyptic number.

It is an amenable number.

253565465 is a deficient number, since it is larger than the sum of its proper divisors (50804263).

253565465 is a wasteful number, since it uses less digits than its factorization.

253565465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15199.

The product of its digits is 540000, while the sum is 41.

The square root of 253565465 is about 15923.7390395598. The cubic root of 253565465 is about 632.9412024746.

The spelling of 253565465 in words is "two hundred fifty-three million, five hundred sixty-five thousand, four hundred sixty-five".