70223051 has 4 divisors (see below), whose sum is σ = 70308792. Its totient is φ = 70137312.

The previous prime is 70223011. The next prime is 70223057. The reversal of 70223051 is 15032207.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15032207 = 223 ⋅67409.

It is a cyclic number.

It is not a de Polignac number, because 70223051 - 2⁶ = 70222987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70223057) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 41630 + ... + 43283.

It is an arithmetic number, because the mean of its divisors is an integer number (17577198).

Almost surely, 2^70223051 is an apocalyptic number.

70223051 is a deficient number, since it is larger than the sum of its proper divisors (85741).

70223051 is an equidigital number, since it uses as much as digits as its factorization.

70223051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85740.

The product of its (nonzero) digits is 420, while the sum is 20.

The square root of 70223051 is about 8379.9195103533. The cubic root of 70223051 is about 412.5658071931.

Adding to 70223051 its reverse (15032207), we get a palindrome (85255258).

The spelling of 70223051 in words is "seventy million, two hundred twenty-three thousand, fifty-one".