253504410040 has 64 divisors (see below), whose sum is σ = 690213700800. Its totient is φ = 81803102208.

The previous prime is 253504410001. The next prime is 253504410053. The reversal of 253504410040 is 40014405352.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 253504409990 and 253504410008.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26623855 + ... + 26633374.

It is an arithmetic number, because the mean of its divisors is an integer number (10784589075).

Almost surely, 2^253504410040 is an apocalyptic number.

253504410040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

253504410040 is an abundant number, since it is smaller than the sum of its proper divisors (436709290760).

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

253504410040 is a wasteful number, since it uses less digits than its factorization.

253504410040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53257264 (or 53257260 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 28.

Adding to 253504410040 its reverse (40014405352), we get a palindrome (293518815392).

The spelling of 253504410040 in words is "two hundred fifty-three billion, five hundred four million, four hundred ten thousand, forty".