2565224000420 has 24 divisors (see below), whose sum is σ = 5387801867448. Its totient is φ = 1025931225600.

The previous prime is 2565224000389. The next prime is 2565224000461. The reversal of 2565224000420 is 240004225652.

It can be written as a sum of positive squares in 4 ways, for example, as 1503846026596 + 1061377973824 = 1226314^2 + 1030232^2 .

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, 9765551 + ... + 10024790.

It is an arithmetic number, because the mean of its divisors is an integer number (224491744477).

Almost surely, 2^{2565224000420} is an apocalyptic number.

2565224000420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2565224000420 is an abundant number, since it is smaller than the sum of its proper divisors (2822577867028).

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

2565224000420 is a wasteful number, since it uses less digits than its factorization.

2565224000420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19796831 (or 19796829 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 32.

The spelling of 2565224000420 in words is "two trillion, five hundred sixty-five billion, two hundred twenty-four million, four hundred twenty", and thus it is an aban number.