71722425 has 24 divisors (see below), whose sum is σ = 120260160. Its totient is φ = 37710400.

The previous prime is 71722403. The next prime is 71722429. The reversal of 71722425 is 52422717.

It is not a de Polignac number, because 71722425 - 2⁷ = 71722297 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 71722392 and 71722401.

It is not an unprimeable number, because it can be changed into a prime (71722429) 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 23 ways as a sum of consecutive naturals, for example, 1410 + ... + 12059.

It is an arithmetic number, because the mean of its divisors is an integer number (5010840).

Almost surely, 2^71722425 is an apocalyptic number.

71722425 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

71722425 is a deficient number, since it is larger than the sum of its proper divisors (48537735).

71722425 is a wasteful number, since it uses less digits than its factorization.

71722425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13553 (or 13548 counting only the distinct ones).

The product of its digits is 7840, while the sum is 30.

The square root of 71722425 is about 8468.9093158446. The cubic root of 71722425 is about 415.4814656911.

The spelling of 71722425 in words is "seventy-one million, seven hundred twenty-two thousand, four hundred twenty-five".