1025254053440 has 28 divisors (see below), whose sum is σ = 2441386215516. Its totient is φ = 410101621248.

The previous prime is 1025254053433. The next prime is 1025254053463. The reversal of 1025254053440 is 443504525201.

It can be written as a sum of positive squares in 2 ways, for example, as 323251376704 + 702002676736 = 568552^2 + 837856^2 .

It is a super-2 number, since 2×1025254053440² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1025254053440.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1601959139 + ... + 1601959778.

Almost surely, 2^{1025254053440} is an apocalyptic number.

1025254053440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1025254053440 is an abundant number, since it is smaller than the sum of its proper divisors (1416132162076).

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

1025254053440 is an equidigital number, since it uses as much as digits as its factorization.

1025254053440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3203918934 (or 3203918924 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 35.

Adding to 1025254053440 its reverse (443504525201), we get a palindrome (1468758578641).

The spelling of 1025254053440 in words is "one trillion, twenty-five billion, two hundred fifty-four million, fifty-three thousand, four hundred forty".