70787025 has 36 divisors (see below), whose sum is σ = 127510812. Its totient is φ = 37537920.

The previous prime is 70786993. The next prime is 70787039. The reversal of 70787025 is 52078707.

It can be written as a sum of positive squares in 6 ways, for example, as 25281 + 70761744 = 159^2 + 8412^2 .

It is not a de Polignac number, because 70787025 - 2⁵ = 70786993 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 43527 + ... + 45123.

It is an arithmetic number, because the mean of its divisors is an integer number (3541967).

Almost surely, 2^70787025 is an apocalyptic number.

70787025 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

70787025 is a deficient number, since it is larger than the sum of its proper divisors (56723787).

70787025 is a wasteful number, since it uses less digits than its factorization.

70787025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1810 (or 1802 counting only the distinct ones).

The product of its (nonzero) digits is 27440, while the sum is 36.

The square root of 70787025 is about 8413.5025405594. The cubic root of 70787025 is about 413.6673270926.

It can be divided in two parts, 7078702 and 5, that added together give a palindrome (7078707).

The spelling of 70787025 in words is "seventy million, seven hundred eighty-seven thousand, twenty-five".