73253775 has 72 divisors (see below), whose sum is σ = 145657344. Its totient is φ = 32356800.

The previous prime is 73253773. The next prime is 73253801. The reversal of 73253775 is 57735237.

It is a happy number.

It is not a de Polignac number, because 73253775 - 2¹ = 73253773 is a prime.

It is a super-2 number, since 2×73253775² = 10732231103501250, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73253771) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 113604 + ... + 114246.

Almost surely, 2^73253775 is an apocalyptic number.

73253775 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

73253775 is a deficient number, since it is larger than the sum of its proper divisors (72403569).

73253775 is a wasteful number, since it uses less digits than its factorization.

73253775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 701 (or 689 counting only the distinct ones).

The product of its digits is 154350, while the sum is 39.

The square root of 73253775 is about 8558.8419193253. The cubic root of 73253775 is about 418.4176571479.

The spelling of 73253775 in words is "seventy-three million, two hundred fifty-three thousand, seven hundred seventy-five".