75525255750 has 160 divisors (see below), whose sum is σ = 219921702624. Its totient is φ = 17262504000.

The previous prime is 75525255749. The next prime is 75525255761. The reversal of 75525255750 is 5755252557.

It is a super-2 number, since 2×75525255750² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 75525255750.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 1779780 + ... + 1821720.

Almost surely, 2^75525255750 is an apocalyptic number.

75525255750 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 75525255750, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (109960851312).

75525255750 is an abundant number, since it is smaller than the sum of its proper divisors (144396446874).

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

75525255750 is an equidigital number, since it uses as much as digits as its factorization.

75525255750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41989 (or 41958 counting only the distinct ones).

The product of its (nonzero) digits is 3062500, while the sum is 48.

The spelling of 75525255750 in words is "seventy-five billion, five hundred twenty-five million, two hundred fifty-five thousand, seven hundred fifty".