75555522377 has 4 divisors (see below), whose sum is σ = 76619684736. Its totient is φ = 74491360020.

The previous prime is 75555522337. The next prime is 75555522401. The reversal of 75555522377 is 77322555557.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 75555522377 - 2¹⁶ = 75555456841 is a prime.

It is a super-2 number, since 2×75555522377² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (75555522337) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 532081073 + ... + 532081214.

It is an arithmetic number, because the mean of its divisors is an integer number (19154921184).

Almost surely, 2^75555522377 is an apocalyptic number.

It is an amenable number.

75555522377 is a deficient number, since it is larger than the sum of its proper divisors (1064162359).

75555522377 is a wasteful number, since it uses less digits than its factorization.

75555522377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1064162358.

The product of its digits is 12862500, while the sum is 53.

The spelling of 75555522377 in words is "seventy-five billion, five hundred fifty-five million, five hundred twenty-two thousand, three hundred seventy-seven".