73021425 has 24 divisors (see below), whose sum is σ = 120989280. Its totient is φ = 38860800.

The previous prime is 73021393. The next prime is 73021433. The reversal of 73021425 is 52412037.

It is not a de Polignac number, because 73021425 - 2⁵ = 73021393 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 73021395 and 73021404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 51121 + ... + 52529.

It is an arithmetic number, because the mean of its divisors is an integer number (5041220).

Almost surely, 2^73021425 is an apocalyptic number.

73021425 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

73021425 is a deficient number, since it is larger than the sum of its proper divisors (47967855).

73021425 is a wasteful number, since it uses less digits than its factorization.

73021425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2113 (or 2108 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 24.

The square root of 73021425 is about 8545.2574566247. The cubic root of 73021425 is about 417.9748025530.

It can be divided in two parts, 730 and 21425, that added together give a triangular number (22155 = T₂₁₀).

The spelling of 73021425 in words is "seventy-three million, twenty-one thousand, four hundred twenty-five".