73030253 has 4 divisors (see below), whose sum is σ = 73052508. Its totient is φ = 73008000.

The previous prime is 73030247. The next prime is 73030261. The reversal of 73030253 is 35203037.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 35203037 = 1399 ⋅25163.

It can be written as a sum of positive squares in 2 ways, for example, as 1170724 + 71859529 = 1082^2 + 8477^2 .

It is a cyclic number.

It is not a de Polignac number, because 73030253 - 2⁶ = 73030189 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73030753) 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, 5126 + ... + 13127.

It is an arithmetic number, because the mean of its divisors is an integer number (18263127).

Almost surely, 2^73030253 is an apocalyptic number.

It is an amenable number.

73030253 is a deficient number, since it is larger than the sum of its proper divisors (22255).

73030253 is a wasteful number, since it uses less digits than its factorization.

73030253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22254.

The product of its (nonzero) digits is 1890, while the sum is 23.

The square root of 73030253 is about 8545.7739848419. The cubic root of 73030253 is about 417.9916457050.

The spelling of 73030253 in words is "seventy-three million, thirty thousand, two hundred fifty-three".