7253445 has 8 divisors (see below), whose sum is σ = 11605536. Its totient is φ = 3868496.

The previous prime is 7253429. The next prime is 7253447. The reversal of 7253445 is 5443527.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 7253445 - 2⁴ = 7253429 is a prime.

It is a super-2 number, since 2×7253445² = 105224928736050, which contains 22 as substring.

It is an Ulam number.

7253445 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7253447) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 241767 + ... + 241796.

It is an arithmetic number, because the mean of its divisors is an integer number (1450692).

Almost surely, 2^7253445 is an apocalyptic number.

It is an amenable number.

7253445 is a deficient number, since it is larger than the sum of its proper divisors (4352091).

7253445 is a wasteful number, since it uses less digits than its factorization.

7253445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 483571.

The product of its digits is 16800, while the sum is 30.

The square root of 7253445 is about 2693.2220480309. Note that the first 3 decimals coincide. The cubic root of 7253445 is about 193.5744827404.

The spelling of 7253445 in words is "seven million, two hundred fifty-three thousand, four hundred forty-five".