705699225 has 243 divisors, whose sum is σ = 1689494079. Its totient is φ = 280526400.

The previous prime is 705699199. The next prime is 705699229. The reversal of 705699225 is 522996507.

705699225 = 1³ + 2³ + ... + 230³.

The square root of 705699225 is 26565.

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., 254051721 + 451647504 = 15939^2 + 21252^2 .

It is not a de Polignac number, because 705699225 - 2¹⁹ = 705174937 is a prime.

It is a super-2 number, since 2×705699225² = 996022792331201250, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (705699229) by changing a digit.

It is a polite number, since it can be written in 242 ways as a sum of consecutive naturals, for example, 30682564 + ... + 30682586.

Almost surely, 2^705699225 is an apocalyptic number.

705699225 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

705699225 is the 26565-th square number.

705699225 is the 13283-rd centered octagonal number.

It is an amenable number.

705699225 is an abundant number, since it is smaller than the sum of its proper divisors (983794854).

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

705699225 is a wasteful number, since it uses less digits than its factorization.

705699225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98 (or 49 counting only the distinct ones).

The product of its (nonzero) digits is 340200, while the sum is 45.

The cubic root of 705699225 is about 890.3071889140.

It can be divided in two parts, 7056 and 99225, that multiplied together give a square (700131600 = 26460²).

The spelling of 705699225 in words is "seven hundred five million, six hundred ninety-nine thousand, two hundred twenty-five".