742604445025 has 81 divisors (see below), whose sum is σ = 998134039161. Its totient is φ = 547987092480.

The previous prime is 742604445001. The next prime is 742604445073. The reversal of 742604445025 is 520544406247.

The square root of 742604445025 is 861745.

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

742604445025 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 119433139281 + 623171305744 = 345591^2 + 789412^2 .

It is not a de Polignac number, because 742604445025 - 2²¹ = 742602347873 is a prime.

It is a super-2 number, since 2×742604445025² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

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, 3847691329 + ... + 3847691521.

Almost surely, 2^742604445025 is an apocalyptic number.

742604445025 is the 861745-th square number.

742604445025 is the 430873-rd centered octagonal number.

It is an amenable number.

742604445025 is a deficient number, since it is larger than the sum of its proper divisors (255529594136).

742604445025 is an equidigital number, since it uses as much as digits as its factorization.

742604445025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 528 (or 264 counting only the distinct ones).

The product of its (nonzero) digits is 1075200, while the sum is 43.

The spelling of 742604445025 in words is "seven hundred forty-two billion, six hundred four million, four hundred forty-five thousand, twenty-five".