70705469025 has 135 divisors (see below), whose sum is σ = 138672868323. Its totient is φ = 35609997600.

The previous prime is 70705468993. The next prime is 70705469039. The reversal of 70705469025 is 52096450707.

The square root of 70705469025 is 265905.

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., 25453968849 + 45251500176 = 159543^2 + 212724^2 .

It is a tau number, because it is divible by the number of its divisors (135).

It is not a de Polignac number, because 70705469025 - 2⁵ = 70705468993 is a prime.

It is a super-3 number, since 3×70705469025³ (a number of 34 digits) contains 333 as substring.

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

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 134 ways as a sum of consecutive naturals, for example, 227348620 + ... + 227348930.

Almost surely, 2^70705469025 is an apocalyptic number.

70705469025 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

70705469025 is the 265905-th square number.

70705469025 is the 132953-rd centered octagonal number.

It is an amenable number.

70705469025 is a deficient number, since it is larger than the sum of its proper divisors (67967399298).

70705469025 is an equidigital number, since it uses as much as digits as its factorization.

70705469025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 682 (or 338 counting only the distinct ones).

The product of its (nonzero) digits is 529200, while the sum is 45.

The spelling of 70705469025 in words is "seventy billion, seven hundred five million, four hundred sixty-nine thousand, twenty-five".