75520055 has 16 divisors (see below), whose sum is σ = 99057504. Its totient is φ = 54933120.

The previous prime is 75520051. The next prime is 75520057. The reversal of 75520055 is 55002557.

It is not a de Polignac number, because 75520055 - 2² = 75520051 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75520051) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4316 + ... + 13025.

It is an arithmetic number, because the mean of its divisors is an integer number (6191094).

Almost surely, 2^75520055 is an apocalyptic number.

75520055 is a deficient number, since it is larger than the sum of its proper divisors (23537449).

75520055 is a wasteful number, since it uses less digits than its factorization.

75520055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17426.

The product of its (nonzero) digits is 8750, while the sum is 29.

The square root of 75520055 is about 8690.2275574348. The cubic root of 75520055 is about 422.6888247159.

The spelling of 75520055 in words is "seventy-five million, five hundred twenty thousand, fifty-five".