63425255040 has 1536 divisors, whose sum is σ = 280687680000. Its totient is φ = 13655900160.

The previous prime is 63425254987. The next prime is 63425255041. The reversal of 63425255040 is 4055252436.

63425255040 is a `hidden beast` number, since 6 + 3 + 42 + 525 + 50 + 40 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 63425254986 and 63425255004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63425255041) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 1546957420 + ... + 1546957460.

It is an arithmetic number, because the mean of its divisors is an integer number (182739375).

Almost surely, 2^63425255040 is an apocalyptic number.

63425255040 is a gapful number since it is divisible by the number (60) 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 63425255040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (140343840000).

63425255040 is an abundant number, since it is smaller than the sum of its proper divisors (217262424960).

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

63425255040 is an equidigital number, since it uses as much as digits as its factorization.

63425255040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125 (or 87 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 36.

The spelling of 63425255040 in words is "sixty-three billion, four hundred twenty-five million, two hundred fifty-five thousand, forty".