75500775 has 144 divisors (see below), whose sum is σ = 172806400. Its totient is φ = 31570560.

The previous prime is 75500773. The next prime is 75500807. The reversal of 75500775 is 57700557.

It is not a de Polignac number, because 75500775 - 2¹ = 75500773 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75500773) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 2603461 + ... + 2603489.

Almost surely, 2^75500775 is an apocalyptic number.

75500775 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

75500775 is an abundant number, since it is smaller than the sum of its proper divisors (97305625).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

75500775 is a wasteful number, since it uses less digits than its factorization.

75500775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103 (or 63 counting only the distinct ones).

The product of its (nonzero) digits is 42875, while the sum is 36.

The square root of 75500775 is about 8689.1181946156. The cubic root of 75500775 is about 422.6528513393.

The spelling of 75500775 in words is "seventy-five million, five hundred thousand, seven hundred seventy-five".