74453125 has 16 divisors (see below), whose sum is σ = 93163824. Its totient is φ = 59500000.

The previous prime is 74453111. The next prime is 74453129. The reversal of 74453125 is 52135447.

It can be written as a sum of positive squares in 8 ways, for example, as 54863649 + 19589476 = 7407^2 + 4426^2 .

It is not a de Polignac number, because 74453125 - 2⁹ = 74452613 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74453129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77649 + ... + 78601.

It is an arithmetic number, because the mean of its divisors is an integer number (5822739).

Almost surely, 2^74453125 is an apocalyptic number.

It is an amenable number.

74453125 is a deficient number, since it is larger than the sum of its proper divisors (18710699).

74453125 is an frugal number, since it uses more digits than its factorization.

74453125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 988 (or 958 counting only the distinct ones).

The product of its digits is 16800, while the sum is 31.

The square root of 74453125 is about 8628.6224277112. The cubic root of 74453125 is about 420.6888262026.

The spelling of 74453125 in words is "seventy-four million, four hundred fifty-three thousand, one hundred twenty-five".