70224505 has 16 divisors (see below), whose sum is σ = 90964944. Its totient is φ = 51736320.

The previous prime is 70224491. The next prime is 70224521. The reversal of 70224505 is 50542207.

It can be written as a sum of positive squares in 8 ways, for example, as 24472809 + 45751696 = 4947^2 + 6764^2 .

It is not a de Polignac number, because 70224505 - 2¹⁷ = 70093433 is a prime.

It is a super-2 number, since 2×70224505² = 9862962204990050, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 70224505.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34167 + ... + 36163.

It is an arithmetic number, because the mean of its divisors is an integer number (5685309).

Almost surely, 2^70224505 is an apocalyptic number.

It is an amenable number.

70224505 is a deficient number, since it is larger than the sum of its proper divisors (20740439).

70224505 is a wasteful number, since it uses less digits than its factorization.

70224505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2556.

The product of its (nonzero) digits is 2800, while the sum is 25.

The square root of 70224505 is about 8380.0062649141. The cubic root of 70224505 is about 412.5686546273.

The spelling of 70224505 in words is "seventy million, two hundred twenty-four thousand, five hundred five".