73552453 has 4 divisors (see below), whose sum is σ = 79210348. Its totient is φ = 67894560.

The previous prime is 73552447. The next prime is 73552463. The reversal of 73552453 is 35425537.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 35425537 = 7 ⋅5060791.

It can be written as a sum of positive squares in 2 ways, for example, as 17032129 + 56520324 = 4127^2 + 7518^2 .

It is a cyclic number.

It is not a de Polignac number, because 73552453 - 2⁹ = 73551941 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73552463) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2828928 + ... + 2828953.

It is an arithmetic number, because the mean of its divisors is an integer number (19802587).

Almost surely, 2^73552453 is an apocalyptic number.

It is an amenable number.

73552453 is a deficient number, since it is larger than the sum of its proper divisors (5657895).

73552453 is a wasteful number, since it uses less digits than its factorization.

73552453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5657894.

The product of its digits is 63000, while the sum is 34.

The square root of 73552453 is about 8576.2726752360. The cubic root of 73552453 is about 418.9855581779.

The spelling of 73552453 in words is "seventy-three million, five hundred fifty-two thousand, four hundred fifty-three".