73564425 has 36 divisors (see below), whose sum is σ = 143745264. Its totient is φ = 35666400.

The previous prime is 73564411. The next prime is 73564433. The reversal of 73564425 is 52446537.

73564425 is a `hidden beast` number, since 7 + 3 + 5 + 644 + 2 + 5 = 666.

It is not a de Polignac number, because 73564425 - 2²¹ = 71467273 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 73564425.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 12387 + ... + 17336.

It is an arithmetic number, because the mean of its divisors is an integer number (3992924).

Almost surely, 2^73564425 is an apocalyptic number.

73564425 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

73564425 is a deficient number, since it is larger than the sum of its proper divisors (70180839).

73564425 is a wasteful number, since it uses less digits than its factorization.

73564425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29750 (or 29742 counting only the distinct ones).

The product of its digits is 100800, while the sum is 36.

The square root of 73564425 is about 8576.9706190473. The cubic root of 73564425 is about 419.0082894523.

It can be divided in two parts, 7356 and 4425, that added together give a triangular number (11781 = T₁₅₃).

The spelling of 73564425 in words is "seventy-three million, five hundred sixty-four thousand, four hundred twenty-five".