2505062550440 has 32 divisors (see below), whose sum is σ = 5643189837000. Its totient is φ = 1000816291584.

The previous prime is 2505062550433. The next prime is 2505062550461. The reversal of 2505062550440 is 440552605052.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2237196267076 + 267866283364 = 1495726^2 + 517558^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2505062550394 and 2505062550403.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37739195 + ... + 37805514.

Almost surely, 2^{2505062550440} is an apocalyptic number.

2505062550440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2505062550440 is an abundant number, since it is smaller than the sum of its proper divisors (3138127286560).

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

2505062550440 is a wasteful number, since it uses less digits than its factorization.

2505062550440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75545549 (or 75545545 counting only the distinct ones).

The product of its (nonzero) digits is 240000, while the sum is 38.

The spelling of 2505062550440 in words is "two trillion, five hundred five billion, sixty-two million, five hundred fifty thousand, four hundred forty".