745170053 has 4 divisors (see below), whose sum is σ = 745225068. Its totient is φ = 745115040.

The previous prime is 745170029. The next prime is 745170067. The reversal of 745170053 is 350071547.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 350071547 = 7 ⋅50010221.

It can be written as a sum of positive squares in 2 ways, for example, as 246898369 + 498271684 = 15713^2 + 22322^2 .

It is a cyclic number.

It is not a de Polignac number, because 745170053 - 2¹⁸ = 744907909 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 (745170073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8675 + ... + 39567.

It is an arithmetic number, because the mean of its divisors is an integer number (186306267).

Almost surely, 2^745170053 is an apocalyptic number.

It is an amenable number.

745170053 is a deficient number, since it is larger than the sum of its proper divisors (55015).

745170053 is a wasteful number, since it uses less digits than its factorization.

745170053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55014.

The product of its (nonzero) digits is 14700, while the sum is 32.

The square root of 745170053 is about 27297.8030801015. The cubic root of 745170053 is about 906.6057399557.

The spelling of 745170053 in words is "seven hundred forty-five million, one hundred seventy thousand, fifty-three".