75505927725 has 36 divisors (see below), whose sum is σ = 135364359936. Its totient is φ = 40232651040.

The previous prime is 75505927711. The next prime is 75505927727. The reversal of 75505927725 is 52772950557.

It is not a de Polignac number, because 75505927725 - 2⁴ = 75505927709 is a prime.

It is a super-2 number, since 2×75505927725² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75505927727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 90214 + ... + 398936.

Almost surely, 2^75505927725 is an apocalyptic number.

75505927725 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

75505927725 is a deficient number, since it is larger than the sum of its proper divisors (59858432211).

75505927725 is a wasteful number, since it uses less digits than its factorization.

75505927725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 309826 (or 309818 counting only the distinct ones).

The product of its (nonzero) digits is 7717500, while the sum is 54.

The spelling of 75505927725 in words is "seventy-five billion, five hundred five million, nine hundred twenty-seven thousand, seven hundred twenty-five".