70198550 has 12 divisors (see below), whose sum is σ = 130569396. Its totient is φ = 28079400.

The previous prime is 70198549. The next prime is 70198561. The reversal of 70198550 is 5589107.

It is a self number, because there is not a number n which added to its sum of digits gives 70198550.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 701936 + ... + 702035.

It is an arithmetic number, because the mean of its divisors is an integer number (10880783).

Almost surely, 2^70198550 is an apocalyptic number.

70198550 is a deficient number, since it is larger than the sum of its proper divisors (60370846).

70198550 is a wasteful number, since it uses less digits than its factorization.

70198550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1403983 (or 1403978 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 35.

The square root of 70198550 is about 8378.4574952673. The cubic root of 70198550 is about 412.5178198607.

The spelling of 70198550 in words is "seventy million, one hundred ninety-eight thousand, five hundred fifty".