274528842025 has 27 divisors (see below), whose sum is σ = 348659586981. Its totient is φ = 214427535840.

The previous prime is 274528841981. The next prime is 274528842031. The reversal of 274528842025 is 520248825472.

The square root of 274528842025 is 523955.

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

It can be written as a sum of positive squares in 4 ways, for example, as 41595194601 + 232933647424 = 203949^2 + 482632^2 .

It is not a de Polignac number, because 274528842025 - 2¹⁹ = 274528317737 is a prime.

It is a super-2 number, since 2×274528842025² (a number of 24 digits) contains 22 as substring.

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 274528842025.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 112649107 + ... + 112651543.

Almost surely, 2^274528842025 is an apocalyptic number.

274528842025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

274528842025 is the 523955-th square number.

274528842025 is the 261978-th centered octagonal number.

It is an amenable number.

274528842025 is a deficient number, since it is larger than the sum of its proper divisors (74130744956).

274528842025 is an frugal number, since it uses more digits than its factorization.

274528842025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4970 (or 2485 counting only the distinct ones).

The product of its (nonzero) digits is 2867200, while the sum is 49.

Multiplying 274528842025 by its sum of digits (49), we get a square (13451913259225 = 3667685²).

The spelling of 274528842025 in words is "two hundred seventy-four billion, five hundred twenty-eight million, eight hundred forty-two thousand, twenty-five".