253015122445 has 32 divisors (see below), whose sum is σ = 313283101824. Its totient is φ = 196053177600.

The previous prime is 253015122443. The next prime is 253015122469. The reversal of 253015122445 is 544221510352.

It is a happy number.

It is not a de Polignac number, because 253015122445 - 2¹ = 253015122443 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 253015122445.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253015122443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16147915 + ... + 16163575.

It is an arithmetic number, because the mean of its divisors is an integer number (9790096932).

Almost surely, 2^253015122445 is an apocalyptic number.

It is an amenable number.

253015122445 is a deficient number, since it is larger than the sum of its proper divisors (60267979379).

253015122445 is a wasteful number, since it uses less digits than its factorization.

253015122445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16333.

The product of its (nonzero) digits is 48000, while the sum is 34.

Adding to 253015122445 its reverse (544221510352), we get a palindrome (797236632797).

The spelling of 253015122445 in words is "two hundred fifty-three billion, fifteen million, one hundred twenty-two thousand, four hundred forty-five".