70225321 has 8 divisors (see below), whose sum is σ = 72522560. Its totient is φ = 67958352.

The previous prime is 70225307. The next prime is 70225367. The reversal of 70225321 is 12352207.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 70225321 - 2⁷ = 70225193 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 70225292 and 70225301.

It is not an unprimeable number, because it can be changed into a prime (70225921) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2805 + ... + 12178.

It is an arithmetic number, because the mean of its divisors is an integer number (9065320).

Almost surely, 2^70225321 is an apocalyptic number.

It is an amenable number.

70225321 is a deficient number, since it is larger than the sum of its proper divisors (2297239).

70225321 is a wasteful number, since it uses less digits than its factorization.

70225321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15135.

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 70225321 is about 8380.0549520871. The cubic root of 70225321 is about 412.5702526199.

Adding to 70225321 its reverse (12352207), we get a palindrome (82577528).

The spelling of 70225321 in words is "seventy million, two hundred twenty-five thousand, three hundred twenty-one".