69722500 has 45 divisors (see below), whose sum is σ = 153387619. Its totient is φ = 27722000.

The previous prime is 69722489. The next prime is 69722501. The reversal of 69722500 is 522796.

The square root of 69722500 is 8350.

It is a perfect power (a square), and thus also a powerful number.

69722500 is nontrivially palindromic in base 3.

It can be written as a sum of positive squares in 2 ways, for example, as 5466244 + 64256256 = 2338^2 + 8016^2 .

It is a super-2 number, since 2×69722500² = 9722454012500000, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (69722501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 417417 + ... + 417583.

Almost surely, 2^69722500 is an apocalyptic number.

69722500 is the 8350-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 69722500

69722500 is an abundant number, since it is smaller than the sum of its proper divisors (83665119).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

69722500 is an equidigital number, since it uses as much as digits as its factorization.

69722500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 358 (or 174 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 31.

The cubic root of 69722500 is about 411.5832103292.

The spelling of 69722500 in words is "sixty-nine million, seven hundred twenty-two thousand, five hundred".