91466929225 has 27 divisors (see below), whose sum is σ = 131951649141. Its totient is φ = 62712921600.

The previous prime is 91466929223. The next prime is 91466929241. The reversal of 91466929225 is 52292966419.

The square root of 91466929225 is 302435.

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

It can be written as a sum of positive squares in 4 ways, for example, as 43388473401 + 48078455824 = 208299^2 + 219268^2 .

It is not a de Polignac number, because 91466929225 - 2¹ = 91466929223 is a prime.

It is a super-4 number, since 4×91466929225⁴ (a number of 45 digits) contains 4444 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (91466929223) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 10580905 + ... + 10589545.

Almost surely, 2^91466929225 is an apocalyptic number.

91466929225 is the 302435-th square number.

91466929225 is the 151218-th centered octagonal number.

It is an amenable number.

91466929225 is a deficient number, since it is larger than the sum of its proper divisors (40484719916).

91466929225 is an frugal number, since it uses more digits than its factorization.

91466929225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17306 (or 8653 counting only the distinct ones).

The product of its digits is 4199040, while the sum is 55.

The spelling of 91466929225 in words is "ninety-one billion, four hundred sixty-six million, nine hundred twenty-nine thousand, two hundred twenty-five".