75385755 has 16 divisors (see below), whose sum is σ = 134019360. Its totient is φ = 40205664.

The previous prime is 75385747. The next prime is 75385763. The reversal of 75385755 is 55758357.

75385755 is a `hidden beast` number, since 75 + 3 + 8 + 575 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (75385747) and next prime (75385763).

It is not a de Polignac number, because 75385755 - 2³ = 75385747 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 75385755.

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, 279072 + ... + 279341.

It is an arithmetic number, because the mean of its divisors is an integer number (8376210).

Almost surely, 2^75385755 is an apocalyptic number.

75385755 is a deficient number, since it is larger than the sum of its proper divisors (58633605).

75385755 is a wasteful number, since it uses less digits than its factorization.

75385755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 558427 (or 558421 counting only the distinct ones).

The product of its digits is 735000, while the sum is 45.

The square root of 75385755 is about 8682.4970486606. The cubic root of 75385755 is about 422.4381151847.

The spelling of 75385755 in words is "seventy-five million, three hundred eighty-five thousand, seven hundred fifty-five".