71225553 has 8 divisors (see below), whose sum is σ = 108534208. Its totient is φ = 40700304.

The previous prime is 71225533. The next prime is 71225579. The reversal of 71225553 is 35552217.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 71225553 - 2⁵ = 71225521 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 71225553.

It is not an unprimeable number, because it can be changed into a prime (71225533) 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, 1695826 + ... + 1695867.

It is an arithmetic number, because the mean of its divisors is an integer number (13566776).

Almost surely, 2^71225553 is an apocalyptic number.

It is an amenable number.

71225553 is a deficient number, since it is larger than the sum of its proper divisors (37308655).

71225553 is a wasteful number, since it uses less digits than its factorization.

71225553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3391703.

The product of its digits is 10500, while the sum is 30.

The square root of 71225553 is about 8439.5232685265. The cubic root of 71225553 is about 414.5197968159.

The spelling of 71225553 in words is "seventy-one million, two hundred twenty-five thousand, five hundred fifty-three".