72255429 has 8 divisors (see below), whose sum is σ = 107045120. Its totient is φ = 48170268.

The previous prime is 72255409. The next prime is 72255431. The reversal of 72255429 is 92455227.

It is a happy number.

72255429 is a `hidden beast` number, since 7 + 225 + 5 + 429 = 666.

It is not a de Polignac number, because 72255429 - 2¹⁷ = 72124357 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 72255393 and 72255402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72255409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1338037 + ... + 1338090.

It is an arithmetic number, because the mean of its divisors is an integer number (13380640).

Almost surely, 2^72255429 is an apocalyptic number.

It is an amenable number.

72255429 is a deficient number, since it is larger than the sum of its proper divisors (34789691).

72255429 is a wasteful number, since it uses less digits than its factorization.

72255429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2676136 (or 2676130 counting only the distinct ones).

The product of its digits is 50400, while the sum is 36.

The square root of 72255429 is about 8500.3193469422. The cubic root of 72255429 is about 416.5081411526.

The spelling of 72255429 in words is "seventy-two million, two hundred fifty-five thousand, four hundred twenty-nine".