745537268025 has 81 divisors (see below), whose sum is σ = 1468051043277. Its totient is φ = 361403539200.

The previous prime is 745537268023. The next prime is 745537268029. The reversal of 745537268025 is 520862735547.

The square root of 745537268025 is 863445.

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

745537268025 is a `hidden beast` number, since 7 + 4 + 5 + 537 + 2 + 6 + 80 + 25 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 140856845481 + 604680422544 = 375309^2 + 777612^2 .

It is not a de Polignac number, because 745537268025 - 2¹ = 745537268023 is a prime.

It is not an unprimeable number, because it can be changed into a prime (745537268023) 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, 142465809 + ... + 142471041.

Almost surely, 2^745537268025 is an apocalyptic number.

745537268025 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

745537268025 is the 863445-th square number.

745537268025 is the 431723-rd centered octagonal number.

It is an amenable number.

745537268025 is a deficient number, since it is larger than the sum of its proper divisors (722513775252).

745537268025 is an equidigital number, since it uses as much as digits as its factorization.

745537268025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10504 (or 5252 counting only the distinct ones).

The product of its (nonzero) digits is 14112000, while the sum is 54.

The spelling of 745537268025 in words is "seven hundred forty-five billion, five hundred thirty-seven million, two hundred sixty-eight thousand, twenty-five".