70253070 has 64 divisors (see below), whose sum is σ = 180576000. Its totient is φ = 17438976.

The previous prime is 70253039. The next prime is 70253077. The reversal of 70253070 is 7035207.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 70253070.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70253077) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 32586 + ... + 34674.

It is an arithmetic number, because the mean of its divisors is an integer number (2821500).

Almost surely, 2^70253070 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70253070, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90288000).

70253070 is an abundant number, since it is smaller than the sum of its proper divisors (110322930).

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

70253070 is a wasteful number, since it uses less digits than its factorization.

70253070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2177.

The product of its (nonzero) digits is 1470, while the sum is 24.

The square root of 70253070 is about 8381.7104459651. The cubic root of 70253070 is about 412.6245867935.

Adding to 70253070 its reverse (7035207), we get a palindrome (77288277).

The spelling of 70253070 in words is "seventy million, two hundred fifty-three thousand, seventy".