75550345 has 16 divisors (see below), whose sum is σ = 97952400. Its totient is φ = 55609344.

The previous prime is 75550333. The next prime is 75550357. The reversal of 75550345 is 54305557.

75550345 = T₄₉₄ + T₄₉₅ + ... + T₈₃₀.

It is an interprime number because it is at equal distance from previous prime (75550333) and next prime (75550357).

It can be written as a sum of positive squares in 8 ways, for example, as 34539129 + 41011216 = 5877^2 + 6404^2 .

It is a cyclic number.

It is not a de Polignac number, because 75550345 - 2¹³ = 75542153 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 75550345.

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, 20181 + ... + 23629.

It is an arithmetic number, because the mean of its divisors is an integer number (6122025).

Almost surely, 2^75550345 is an apocalyptic number.

It is an amenable number.

75550345 is a deficient number, since it is larger than the sum of its proper divisors (22402055).

75550345 is a wasteful number, since it uses less digits than its factorization.

75550345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3804.

The product of its (nonzero) digits is 52500, while the sum is 34.

The square root of 75550345 is about 8691.9701449096. The cubic root of 75550345 is about 422.7453286170.

The spelling of 75550345 in words is "seventy-five million, five hundred fifty thousand, three hundred forty-five".