501440413015253 has 4 divisors (see below), whose sum is σ = 501440605870560. Its totient is φ = 501440220159948.

The previous prime is 501440413015231. The next prime is 501440413015379. The reversal of 501440413015253 is 352510314044105.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 501440413015253 - 2⁶ = 501440413015189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (501440413015153) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 92473475 + ... + 97745712.

It is an arithmetic number, because the mean of its divisors is an integer number (125360151467640).

Almost surely, 2^{501440413015253} is an apocalyptic number.

It is an amenable number.

501440413015253 is a deficient number, since it is larger than the sum of its proper divisors (192855307).

501440413015253 is a wasteful number, since it uses less digits than its factorization.

501440413015253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192855306.

The product of its (nonzero) digits is 144000, while the sum is 38.

Adding to 501440413015253 its reverse (352510314044105), we get a palindrome (853950727059358).

The spelling of 501440413015253 in words is "five hundred one trillion, four hundred forty billion, four hundred thirteen million, fifteen thousand, two hundred fifty-three".