745450926025 has 81 divisors (see below), whose sum is σ = 1031590159551. Its totient is φ = 534116868480.

The previous prime is 745450926019. The next prime is 745450926043. The reversal of 745450926025 is 520629054547.

The square root of 745450926025 is 863395.

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

It can be written as a sum of positive squares in 13 ways, for example, as 430195627449 + 315255298576 = 655893^2 + 561476^2 .

It is not a de Polignac number, because 745450926025 - 2¹⁹ = 745450401737 is a prime.

It is a super-2 number, since 2×745450926025² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 745450926025.

It is an unprimeable number.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 2076464796 + ... + 2076465154.

Almost surely, 2^745450926025 is an apocalyptic number.

745450926025 is the 863395-th square number.

745450926025 is the 431698-th centered octagonal number.

It is an amenable number.

745450926025 is a deficient number, since it is larger than the sum of its proper divisors (286139233526).

745450926025 is an equidigital number, since it uses as much as digits as its factorization.

745450926025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 828 (or 414 counting only the distinct ones).

The product of its (nonzero) digits is 3024000, while the sum is 49.

Multiplying 745450926025 by its sum of digits (49), we get a square (36527095375225 = 6043765²).

The spelling of 745450926025 in words is "seven hundred forty-five billion, four hundred fifty million, nine hundred twenty-six thousand, twenty-five".