71698095225 has 27 divisors (see below), whose sum is σ = 128426449359. Its totient is φ = 38236842000.

The previous prime is 71698095223. The next prime is 71698095229. The reversal of 71698095225 is 52259089617.

The square root of 71698095225 is 267765.

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

It can be written as a sum of positive squares in only one way, i.e., 25811314281 + 45886780944 = 160659^2 + 214212^2 .

It is not a de Polignac number, because 71698095225 - 2¹ = 71698095223 is a prime.

It is not an unprimeable number, because it can be changed into a prime (71698095223) 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, 4007550 + ... + 4025400.

Almost surely, 2^71698095225 is an apocalyptic number.

71698095225 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

71698095225 is the 267765-th square number.

71698095225 is the 133883-rd centered octagonal number.

It is an amenable number.

71698095225 is a deficient number, since it is larger than the sum of its proper divisors (56728354134).

71698095225 is an frugal number, since it uses more digits than its factorization.

71698095225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35718 (or 17859 counting only the distinct ones).

The product of its (nonzero) digits is 2721600, while the sum is 54.

The spelling of 71698095225 in words is "seventy-one billion, six hundred ninety-eight million, ninety-five thousand, two hundred twenty-five".