1025005622564 has 48 divisors (see below), whose sum is σ = 2264684513280. Its totient is φ = 394297731360.

The previous prime is 1025005622561. The next prime is 1025005622591. The reversal of 1025005622564 is 4652265005201.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1025005622561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21038582 + ... + 21087245.

It is an arithmetic number, because the mean of its divisors is an integer number (47180927360).

Almost surely, 2^{1025005622564} is an apocalyptic number.

1025005622564 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1025005622564 is an abundant number, since it is smaller than the sum of its proper divisors (1239678890716).

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

1025005622564 is a wasteful number, since it uses less digits than its factorization.

1025005622564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42125928 (or 42125926 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 38.

The spelling of 1025005622564 in words is "one trillion, twenty-five billion, five million, six hundred twenty-two thousand, five hundred sixty-four".