73742425 has 12 divisors (see below), whose sum is σ = 91580076. Its totient is φ = 58904000.

The previous prime is 73742399. The next prime is 73742441. The reversal of 73742425 is 52424737.

It can be written as a sum of positive squares in 6 ways, for example, as 2862864 + 70879561 = 1692^2 + 8419^2 .

It is not a de Polignac number, because 73742425 - 2⁷ = 73742297 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18075 + ... + 21775.

It is an arithmetic number, because the mean of its divisors is an integer number (7631673).

Almost surely, 2^73742425 is an apocalyptic number.

It is an amenable number.

73742425 is a deficient number, since it is larger than the sum of its proper divisors (17837651).

73742425 is a wasteful number, since it uses less digits than its factorization.

73742425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4508 (or 4503 counting only the distinct ones).

The product of its digits is 47040, while the sum is 34.

The square root of 73742425 is about 8587.3409737823. The cubic root of 73742425 is about 419.3459680744.

The spelling of 73742425 in words is "seventy-three million, seven hundred forty-two thousand, four hundred twenty-five".