2551990275025 has 9 divisors (see below), whose sum is σ = 3164477845531. Its totient is φ = 2041585830040.

The previous prime is 2551990275019. The next prime is 2551990275161. The reversal of 2551990275025 is 5205720991552.

The square root of 2551990275025 is 1597495.

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

2551990275025 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 918716499009 + 1633273776016 = 958497^2 + 1277996^2 .

It is not a de Polignac number, because 2551990275025 - 2²³ = 2551981886417 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 7827726 + ... + 8147224.

Almost surely, 2^{2551990275025} is an apocalyptic number.

2551990275025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2551990275025 is the 1597495-th square number.

2551990275025 is the 798748-th centered octagonal number.

It is an amenable number.

2551990275025 is a deficient number, since it is larger than the sum of its proper divisors (612487570506).

2551990275025 is an frugal number, since it uses more digits than its factorization.

2551990275025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 639008 (or 319504 counting only the distinct ones).

The product of its (nonzero) digits is 2835000, while the sum is 52.

The spelling of 2551990275025 in words is "two trillion, five hundred fifty-one billion, nine hundred ninety million, two hundred seventy-five thousand, twenty-five".