74423025 has 36 divisors (see below), whose sum is σ = 141148332. Its totient is φ = 37355520.

The previous prime is 74423023. The next prime is 74423039. The reversal of 74423025 is 52032447.

It can be written as a sum of positive squares in 6 ways, for example, as 2241009 + 72182016 = 1497^2 + 8496^2 .

It is not a de Polignac number, because 74423025 - 2¹ = 74423023 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 74423025.

It is not an unprimeable number, because it can be changed into a prime (74423023) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 5904 + ... + 13553.

It is an arithmetic number, because the mean of its divisors is an integer number (3920787).

Almost surely, 2^74423025 is an apocalyptic number.

74423025 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

74423025 is a deficient number, since it is larger than the sum of its proper divisors (66725307).

74423025 is a wasteful number, since it uses less digits than its factorization.

74423025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19490 (or 19482 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 27.

The square root of 74423025 is about 8626.8780564002. The cubic root of 74423025 is about 420.6321263641.

The spelling of 74423025 in words is "seventy-four million, four hundred twenty-three thousand, twenty-five".