1025531454020 has 12 divisors (see below), whose sum is σ = 2153616053484. Its totient is φ = 410212581600.

The previous prime is 1025531453957. The next prime is 1025531454089. The reversal of 1025531454020 is 204541355201.

It can be written as a sum of positive squares in 2 ways, for example, as 554968381444 + 470563072576 = 744962^2 + 685976^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25638286331 + ... + 25638286370.

It is an arithmetic number, because the mean of its divisors is an integer number (179468004457).

Almost surely, 2^{1025531454020} is an apocalyptic number.

1025531454020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1025531454020 is an abundant number, since it is smaller than the sum of its proper divisors (1128084599464).

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

1025531454020 is a wasteful number, since it uses less digits than its factorization.

1025531454020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51276572710 (or 51276572708 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 32.

The spelling of 1025531454020 in words is "one trillion, twenty-five billion, five hundred thirty-one million, four hundred fifty-four thousand, twenty".