745055 has 4 divisors (see below), whose sum is σ = 894072. Its totient is φ = 596040.

The previous prime is 745051. The next prime is 745067. The reversal of 745055 is 550547.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 550547 = 293 ⋅1879.

It is not a de Polignac number, because 745055 - 2² = 745051 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 (745051) 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, 74501 + ... + 74510.

It is an arithmetic number, because the mean of its divisors is an integer number (223518).

2⁷⁴⁵⁰⁵⁵ is an apocalyptic number.

745055 is a deficient number, since it is larger than the sum of its proper divisors (149017).

745055 is a wasteful number, since it uses less digits than its factorization.

745055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149016.

The product of its (nonzero) digits is 3500, while the sum is 26.

The square root of 745055 is about 863.1656851381. The cubic root of 745055 is about 90.6559078088.

The spelling of 745055 in words is "seven hundred forty-five thousand, fifty-five".