75821925 has 24 divisors (see below), whose sum is σ = 125663584. Its totient is φ = 40340160.

The previous prime is 75821897. The next prime is 75821927. The reversal of 75821925 is 52912857.

It is not a de Polignac number, because 75821925 - 2⁷ = 75821797 is a prime.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75821927) 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 23 ways as a sum of consecutive naturals, for example, 38259 + ... + 40191.

Almost surely, 2^75821925 is an apocalyptic number.

75821925 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

75821925 is a deficient number, since it is larger than the sum of its proper divisors (49841659).

75821925 is a wasteful number, since it uses less digits than its factorization.

75821925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2469 (or 2464 counting only the distinct ones).

The product of its digits is 50400, while the sum is 39.

The square root of 75821925 is about 8707.5785956832. The cubic root of 75821925 is about 423.2512688729.

The spelling of 75821925 in words is "seventy-five million, eight hundred twenty-one thousand, nine hundred twenty-five".