73438290025 has 27 divisors (see below), whose sum is σ = 92315219269. Its totient is φ = 57953906720.

The previous prime is 73438290017. The next prime is 73438290043. The reversal of 73438290025 is 52009283437.

The square root of 73438290025 is 270995.

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 12425337961 + 61012952064 = 111469^2 + 247008^2 .

It is not a de Polignac number, because 73438290025 - 2³ = 73438290017 is a prime.

It is a Duffinian number.

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, 112462599 + ... + 112463251.

Almost surely, 2^73438290025 is an apocalyptic number.

73438290025 is the 270995-th square number.

73438290025 is the 135498-th centered octagonal number.

It is an amenable number.

73438290025 is a deficient number, since it is larger than the sum of its proper divisors (18876929244).

73438290025 is an frugal number, since it uses more digits than its factorization.

73438290025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1482 (or 741 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 43.

The spelling of 73438290025 in words is "seventy-three billion, four hundred thirty-eight million, two hundred ninety thousand, twenty-five".