73552645 has 16 divisors (see below), whose sum is σ = 90357120. Its totient is φ = 57459904.

The previous prime is 73552639. The next prime is 73552651. The reversal of 73552645 is 54625537.

It is an interprime number because it is at equal distance from previous prime (73552639) and next prime (73552651).

It is a cyclic number.

It is not a de Polignac number, because 73552645 - 2³ = 73552637 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48519 + ... + 50011.

It is an arithmetic number, because the mean of its divisors is an integer number (5647320).

Almost surely, 2^73552645 is an apocalyptic number.

It is an amenable number.

73552645 is a deficient number, since it is larger than the sum of its proper divisors (16804475).

73552645 is a wasteful number, since it uses less digits than its factorization.

73552645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1724.

The product of its digits is 126000, while the sum is 37.

The square root of 73552645 is about 8576.2838689027. The cubic root of 73552645 is about 418.9859227484.

It can be divided in two parts, 7355 and 2645, that added together give a 4-th power (10000 = 10⁴).

The spelling of 73552645 in words is "seventy-three million, five hundred fifty-two thousand, six hundred forty-five".