73609025 has 18 divisors (see below), whose sum is σ = 106179030. Its totient is φ = 50473920.

The previous prime is 73608971. The next prime is 73609033. The reversal of 73609025 is 52090637.

It can be written as a sum of positive squares in 3 ways, for example, as 24216241 + 49392784 = 4921^2 + 7028^2 .

It is not a de Polignac number, because 73609025 - 2¹⁰ = 73608001 is a prime.

It is a super-2 number, since 2×73609025² = 10836577122901250, which contains 22 as substring.

It is a plaindrome in base 13.

It is a junction number, because it is equal to n+sod(n) for n = 73608982 and 73609000.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 28820 + ... + 31269.

It is an arithmetic number, because the mean of its divisors is an integer number (5898835).

Almost surely, 2^73609025 is an apocalyptic number.

It is an amenable number.

73609025 is a deficient number, since it is larger than the sum of its proper divisors (32570005).

73609025 is a wasteful number, since it uses less digits than its factorization.

73609025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60113 (or 60101 counting only the distinct ones).

The product of its (nonzero) digits is 11340, while the sum is 32.

The square root of 73609025 is about 8579.5702106807. The cubic root of 73609025 is about 419.0929499132.

The spelling of 73609025 in words is "seventy-three million, six hundred nine thousand, twenty-five".