75155725725 has 48 divisors (see below), whose sum is σ = 127813914624. Its totient is φ = 38945592000.

The previous prime is 75155725597. The next prime is 75155725753. The reversal of 75155725725 is 52752755157.

It is not a de Polignac number, because 75155725725 - 2⁷ = 75155725597 is a prime.

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, 554970 + ... + 676980.

It is an arithmetic number, because the mean of its divisors is an integer number (2662789888).

Almost surely, 2^75155725725 is an apocalyptic number.

75155725725 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

75155725725 is a deficient number, since it is larger than the sum of its proper divisors (52658188899).

75155725725 is a wasteful number, since it uses less digits than its factorization.

75155725725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122258 (or 122253 counting only the distinct ones).

The product of its digits is 4287500, while the sum is 51.

The spelling of 75155725725 in words is "seventy-five billion, one hundred fifty-five million, seven hundred twenty-five thousand, seven hundred twenty-five".