253735147569 has 32 divisors (see below), whose sum is σ = 361183795200. Its totient is φ = 157981112640.

The previous prime is 253735147541. The next prime is 253735147573. The reversal of 253735147569 is 965741537352.

It is a happy number.

It is not a de Polignac number, because 253735147569 - 2⁸ = 253735147313 is a prime.

It is a super-2 number, since 2×253735147569² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is not an unprimeable number, because it can be changed into a prime (253735147669) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2897314 + ... + 2983604.

It is an arithmetic number, because the mean of its divisors is an integer number (11286993600).

Almost surely, 2^253735147569 is an apocalyptic number.

It is an amenable number.

253735147569 is a deficient number, since it is larger than the sum of its proper divisors (107448647631).

253735147569 is a wasteful number, since it uses less digits than its factorization.

253735147569 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87045.

The product of its digits is 23814000, while the sum is 57.

The spelling of 253735147569 in words is "two hundred fifty-three billion, seven hundred thirty-five million, one hundred forty-seven thousand, five hundred sixty-nine".