70055216 has 80 divisors (see below), whose sum is σ = 171203328. Its totient is φ = 26976000.

The previous prime is 70055207. The next prime is 70055221. The reversal of 70055216 is 61255007.

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, 124151 + ... + 124713.

Almost surely, 2^70055216 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70055216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85601664).

70055216 is an abundant number, since it is smaller than the sum of its proper divisors (101148112).

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

70055216 is a wasteful number, since it uses less digits than its factorization.

70055216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 690 (or 684 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 26.

The square root of 70055216 is about 8369.8994020239. The cubic root of 70055216 is about 412.2368638294.

It can be divided in two parts, 7005 and 5216, that added together give a palindrome (12221).

The spelling of 70055216 in words is "seventy million, fifty-five thousand, two hundred sixteen".