73305252 has 18 divisors (see below), whose sum is σ = 185299478. Its totient is φ = 24435072.

The previous prime is 73305233. The next prime is 73305257. The reversal of 73305252 is 25250337.

It can be written as a sum of positive squares in only one way, i.e., 39012516 + 34292736 = 6246^2 + 5856^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is not an unprimeable number, because it can be changed into a prime (73305257) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1018093 + ... + 1018164.

Almost surely, 2^73305252 is an apocalyptic number.

It is an amenable number.

73305252 is an abundant number, since it is smaller than the sum of its proper divisors (111994226).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

73305252 is a wasteful number, since it uses less digits than its factorization.

73305252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2036267 (or 2036262 counting only the distinct ones).

The product of its (nonzero) digits is 6300, while the sum is 27.

The square root of 73305252 is about 8561.8486321588. The cubic root of 73305252 is about 418.5156445550.

Adding to 73305252 its reverse (25250337), we get a palindrome (98555589).

The spelling of 73305252 in words is "seventy-three million, three hundred five thousand, two hundred fifty-two".