75075272255550 has 96 divisors (see below), whose sum is σ = 212844772276992. Its totient is φ = 17155223470080.

The previous prime is 75075272255497. The next prime is 75075272255573. The reversal of 75075272255550 is 5555227257057.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6354627 + ... + 13803326.

It is an arithmetic number, because the mean of its divisors is an integer number (2217133044552).

Almost surely, 2^{75075272255550} is an apocalyptic number.

75075272255550 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

75075272255550 is an abundant number, since it is smaller than the sum of its proper divisors (137769500021442).

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

75075272255550 is a wasteful number, since it uses less digits than its factorization.

75075272255550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20161522 (or 20161517 counting only the distinct ones).

The product of its (nonzero) digits is 42875000, while the sum is 57.

The spelling of 75075272255550 in words is "seventy-five trillion, seventy-five billion, two hundred seventy-two million, two hundred fifty-five thousand, five hundred fifty".