75485925 has 30 divisors (see below), whose sum is σ = 139829778. Its totient is φ = 40258080.

The previous prime is 75485923. The next prime is 75485929. The reversal of 75485925 is 52958457.

75485925 is a `hidden beast` number, since 7 + 54 + 8 + 592 + 5 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 1147041 + 74338884 = 1071^2 + 8622^2 .

It is not a de Polignac number, because 75485925 - 2¹ = 75485923 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75485923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 16614 + ... + 20663.

Almost surely, 2^75485925 is an apocalyptic number.

75485925 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

75485925 is a deficient number, since it is larger than the sum of its proper divisors (64343853).

75485925 is a wasteful number, since it uses less digits than its factorization.

75485925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37299 (or 37285 counting only the distinct ones).

The product of its digits is 504000, while the sum is 45.

The square root of 75485925 is about 8688.2636355028. The cubic root of 75485925 is about 422.6251394543.

The spelling of 75485925 in words is "seventy-five million, four hundred eighty-five thousand, nine hundred twenty-five".