73611225 has 72 divisors (see below), whose sum is σ = 141404640. Its totient is φ = 36495360.

The previous prime is 73611199. The next prime is 73611233. The reversal of 73611225 is 52211637.

It is a happy number.

It is not a de Polignac number, because 73611225 - 2¹² = 73607129 is a prime.

It is a super-2 number, since 2×73611225² = 10837224892001250, which contains 22 as substring.

It is a plaindrome in base 13.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 286297 + ... + 286553.

Almost surely, 2^73611225 is an apocalyptic number.

73611225 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

73611225 is a deficient number, since it is larger than the sum of its proper divisors (67793415).

73611225 is a wasteful number, since it uses less digits than its factorization.

73611225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 359 (or 351 counting only the distinct ones).

The product of its digits is 2520, while the sum is 27.

The square root of 73611225 is about 8579.6984212733. The cubic root of 73611225 is about 419.0971251046.

The spelling of 73611225 in words is "seventy-three million, six hundred eleven thousand, two hundred twenty-five".