1425240561000 has 256 divisors, whose sum is σ = 4494547699200. Its totient is φ = 375986688000.

The previous prime is 1425240560981. The next prime is 1425240561053. The reversal of 1425240561000 is 1650425241.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 420547306 + ... + 420550694.

It is an arithmetic number, because the mean of its divisors is an integer number (17556826950).

Almost surely, 2^{1425240561000} is an apocalyptic number.

1425240561000 is a gapful number since it is divisible by the number (10) 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 1425240561000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2247273849600).

1425240561000 is an abundant number, since it is smaller than the sum of its proper divisors (3069307138200).

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

1425240561000 is a wasteful number, since it uses less digits than its factorization.

1425240561000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4877 (or 4863 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 30.

Adding to 1425240561000 its reverse (1650425241), we get a palindrome (1426890986241).

The spelling of 1425240561000 in words is "one trillion, four hundred twenty-five billion, two hundred forty million, five hundred sixty-one thousand".