70253242 has 4 divisors (see below), whose sum is σ = 105379866. Its totient is φ = 35126620.

The previous prime is 70253221. The next prime is 70253243. The reversal of 70253242 is 24235207.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24235207 = 167 ⋅145121.

It can be written as a sum of positive squares in only one way, i.e., 69906321 + 346921 = 8361^2 + 589^2 .

It is not an unprimeable number, because it can be changed into a prime (70253243) by changing a digit.

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 as a sum of consecutive naturals, namely, 17563309 + ... + 17563312.

Almost surely, 2^70253242 is an apocalyptic number.

70253242 is a deficient number, since it is larger than the sum of its proper divisors (35126624).

70253242 is a wasteful number, since it uses less digits than its factorization.

70253242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35126623.

The product of its (nonzero) digits is 3360, while the sum is 25.

The square root of 70253242 is about 8381.7207063944. The cubic root of 70253242 is about 412.6249235350.

Adding to 70253242 its reverse (24235207), we get a palindrome (94488449).

The spelling of 70253242 in words is "seventy million, two hundred fifty-three thousand, two hundred forty-two".