74821925 has 12 divisors (see below), whose sum is σ = 95043396. Its totient is φ = 58396800.

The previous prime is 74821909. The next prime is 74821937. The reversal of 74821925 is 52912847.

It can be written as a sum of positive squares in 6 ways, for example, as 18241441 + 56580484 = 4271^2 + 7522^2 .

It is not a de Polignac number, because 74821925 - 2⁴ = 74821909 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 35474 + ... + 37523.

It is an arithmetic number, because the mean of its divisors is an integer number (7920283).

Almost surely, 2^74821925 is an apocalyptic number.

It is an amenable number.

74821925 is a deficient number, since it is larger than the sum of its proper divisors (20221471).

74821925 is a wasteful number, since it uses less digits than its factorization.

74821925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73048 (or 73043 counting only the distinct ones).

The product of its digits is 40320, while the sum is 38.

The square root of 74821925 is about 8649.9667629419. The cubic root of 74821925 is about 421.3823030968.

The spelling of 74821925 in words is "seventy-four million, eight hundred twenty-one thousand, nine hundred twenty-five".