537794889025 has 9 divisors (see below), whose sum is σ = 666870209161. Its totient is φ = 430232977840.

The previous prime is 537794889019. The next prime is 537794889029. The reversal of 537794889025 is 520988497735.

The square root of 537794889025 is 733345.

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 247842049 + 537547046976 = 15743^2 + 733176^2 .

It is not a de Polignac number, because 537794889025 - 2²⁹ = 537258018113 is a prime.

It is a super-2 number, since 2×537794889025² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (537794889029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 3593391 + ... + 3740059.

Almost surely, 2^537794889025 is an apocalyptic number.

537794889025 is the 733345-th square number.

537794889025 is the 366673-rd centered octagonal number.

It is an amenable number.

537794889025 is a deficient number, since it is larger than the sum of its proper divisors (129075320136).

537794889025 is an frugal number, since it uses more digits than its factorization.

537794889025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 293348 (or 146674 counting only the distinct ones).

The product of its (nonzero) digits is 152409600, while the sum is 67.

The spelling of 537794889025 in words is "five hundred thirty-seven billion, seven hundred ninety-four million, eight hundred eighty-nine thousand, twenty-five".