253023334514545 has 48 divisors (see below), whose sum is σ = 354864471527808. Its totient is φ = 172685808852480.

The previous prime is 253023334514537. The next prime is 253023334514569. The reversal of 253023334514545 is 545415433320352.

It is a happy number.

It is not a de Polignac number, because 253023334514545 - 2³ = 253023334514537 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 45458572 + ... + 50720098.

It is an arithmetic number, because the mean of its divisors is an integer number (7393009823496).

Almost surely, 2^{253023334514545} is an apocalyptic number.

It is an amenable number.

253023334514545 is a deficient number, since it is larger than the sum of its proper divisors (101841137013263).

253023334514545 is a wasteful number, since it uses less digits than its factorization.

253023334514545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5262470 (or 5262463 counting only the distinct ones).

The product of its (nonzero) digits is 12960000, while the sum is 49.

Adding to 253023334514545 its reverse (545415433320352), we get a palindrome (798438767834897).

The spelling of 253023334514545 in words is "two hundred fifty-three trillion, twenty-three billion, three hundred thirty-four million, five hundred fourteen thousand, five hundred forty-five".