275726025 has 81 divisors (see below), whose sum is σ = 525637333. Its totient is φ = 143467200.

The previous prime is 275726023. The next prime is 275726041. The reversal of 275726025 is 520627572.

The square root of 275726025 is 16605.

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

275726025 is a `hidden beast` number, since 2 + 7 + 572 + 60 + 25 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 116057529 + 159668496 = 10773^2 + 12636^2 .

It is a tau number, because it is divible by the number of its divisors (81).

It is not a de Polignac number, because 275726025 - 2¹ = 275726023 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (275726023) by changing a digit.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 6725005 + ... + 6725045.

Almost surely, 2^275726025 is an apocalyptic number.

275726025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

275726025 is the 16605-th square number.

275726025 is the 8303-rd centered octagonal number.

It is an amenable number.

275726025 is a deficient number, since it is larger than the sum of its proper divisors (249911308).

275726025 is an frugal number, since it uses more digits than its factorization.

275726025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116 (or 49 counting only the distinct ones).

The product of its (nonzero) digits is 58800, while the sum is 36.

The cubic root of 275726025 is about 650.8675004819.

Multiplying 275726025 by its sum of digits (36), we get a square (9926136900 = 99630²).

It can be divided in two parts, 2757 and 26025, that added together give a palindrome (28782).

The spelling of 275726025 in words is "two hundred seventy-five million, seven hundred twenty-six thousand, twenty-five".