425522500000 has 192 divisors, whose sum is σ = 1127820159648. Its totient is φ = 157104000000.

The previous prime is 425522499991. The next prime is 425522500021. The reversal of 425522500000 is 5225524.

It is a happy number.

It can be written as a sum of positive squares in 16 ways, for example, as 423754129296 + 1768370704 = 650964^2 + 42052^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 32493454 + ... + 32506546.

Almost surely, 2^425522500000 is an apocalyptic number.

425522500000 is a gapful number since it is divisible by the number (40) 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 425522500000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (563910079824).

425522500000 is an abundant number, since it is smaller than the sum of its proper divisors (702297659648).

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

425522500000 is an frugal number, since it uses more digits than its factorization.

425522500000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13151 (or 13113 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 25.

Adding to 425522500000 its reverse (5225524), we get a palindrome (425527725524).

The spelling of 425522500000 in words is "four hundred twenty-five billion, five hundred twenty-two million, five hundred thousand".