2591922903025 has 27 divisors (see below), whose sum is σ = 3237197541123. Its totient is φ = 2058668870400.

The previous prime is 2591922903007. The next prime is 2591922903029. The reversal of 2591922903025 is 5203092291952.

It is a happy number.

The square root of 2591922903025 is 1609945.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 13 ways, for example, as 2310573283249 + 281349619776 = 1520057^2 + 530424^2 .

It is not a de Polignac number, because 2591922903025 - 2¹¹ = 2591922900977 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2591922903025.

It is not an unprimeable number, because it can be changed into a prime (2591922903029) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 1199407945 + ... + 1199410105.

Almost surely, 2^{2591922903025} is an apocalyptic number.

2591922903025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2591922903025 is the 1609945-th square number.

2591922903025 is the 804973-rd centered octagonal number.

It is an amenable number.

2591922903025 is a deficient number, since it is larger than the sum of its proper divisors (645274638098).

2591922903025 is an frugal number, since it uses more digits than its factorization.

2591922903025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4630 (or 2315 counting only the distinct ones).

The product of its (nonzero) digits is 874800, while the sum is 49.

Multiplying 2591922903025 by its sum of digits (49), we get a square (127004222248225 = 11269615²).

The spelling of 2591922903025 in words is "two trillion, five hundred ninety-one billion, nine hundred twenty-two million, nine hundred three thousand, twenty-five".