253051615404 has 192 divisors, whose sum is σ = 783691130880. Its totient is φ = 69041237760.

The previous prime is 253051615343. The next prime is 253051615549. The reversal of 253051615404 is 404516150352.

253051615404 is a `hidden beast` number, since 2 + 5 + 3 + 0 + 51 + 61 + 540 + 4 = 666.

253051615404 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 10646974 + ... + 10670714.

It is an arithmetic number, because the mean of its divisors is an integer number (4081724640).

Almost surely, 2^253051615404 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 253051615404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (391845565440).

253051615404 is an abundant number, since it is smaller than the sum of its proper divisors (530639515476).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

253051615404 is a wasteful number, since it uses less digits than its factorization.

253051615404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24397 (or 24389 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 36.

Adding to 253051615404 its reverse (404516150352), we get a palindrome (657567765756).

The spelling of 253051615404 in words is "two hundred fifty-three billion, fifty-one million, six hundred fifteen thousand, four hundred four".