425755215424 has 168 divisors, whose sum is σ = 1062527679360. Its totient is φ = 165688258560.

The previous prime is 425755215421. The next prime is 425755215449. The reversal of 425755215424 is 424512557524.

It is not an unprimeable number, because it can be changed into a prime (425755215421) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 52957197 + ... + 52965235.

It is an arithmetic number, because the mean of its divisors is an integer number (6324569520).

Almost surely, 2^425755215424 is an apocalyptic number.

425755215424 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 425755215424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (531263839680).

425755215424 is an abundant number, since it is smaller than the sum of its proper divisors (636772463936).

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

425755215424 is a wasteful number, since it uses less digits than its factorization.

425755215424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9057 (or 9036 counting only the distinct ones).

The product of its digits is 2240000, while the sum is 46.

The spelling of 425755215424 in words is "four hundred twenty-five billion, seven hundred fifty-five million, two hundred fifteen thousand, four hundred twenty-four".