70785263025 has 27 divisors (see below), whose sum is σ = 126791419521. Its totient is φ = 37750011840.

The previous prime is 70785262997. The next prime is 70785263077. The reversal of 70785263025 is 52036258707.

The square root of 70785263025 is 266055.

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

70785263025 is a `hidden beast` number, since 7 + 0 + 7 + 8 + 5 + 2 + 630 + 2 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 5447768481 + 65337494544 = 73809^2 + 255612^2 .

It is not a de Polignac number, because 70785263025 - 2¹³ = 70785254833 is a prime.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 3981957 + ... + 3999693.

Almost surely, 2^70785263025 is an apocalyptic number.

70785263025 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

70785263025 is the 266055-th square number.

70785263025 is the 133028-th centered octagonal number.

It is an amenable number.

70785263025 is a deficient number, since it is larger than the sum of its proper divisors (56006156496).

70785263025 is an frugal number, since it uses more digits than its factorization.

70785263025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35490 (or 17745 counting only the distinct ones).

The product of its (nonzero) digits is 705600, while the sum is 45.

The spelling of 70785263025 in words is "seventy billion, seven hundred eighty-five million, two hundred sixty-three thousand, twenty-five".