253297737065 has 16 divisors (see below), whose sum is σ = 305137324800. Its totient is φ = 201852800832.

The previous prime is 253297737029. The next prime is 253297737071. The reversal of 253297737065 is 560737792352.

It is a cyclic number.

It is not a de Polignac number, because 253297737065 - 2¹² = 253297732969 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 253297737065.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1483796 + ... + 1645674.

It is an arithmetic number, because the mean of its divisors is an integer number (19071082800).

Almost surely, 2^253297737065 is an apocalyptic number.

It is an amenable number.

253297737065 is a deficient number, since it is larger than the sum of its proper divisors (51839587735).

253297737065 is a wasteful number, since it uses less digits than its factorization.

253297737065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163096.

The product of its (nonzero) digits is 16669800, while the sum is 56.

The spelling of 253297737065 in words is "two hundred fifty-three billion, two hundred ninety-seven million, seven hundred thirty-seven thousand, sixty-five".