70532250 has 64 divisors (see below), whose sum is σ = 177465600. Its totient is φ = 18657600.

The previous prime is 70532243. The next prime is 70532281. The reversal of 70532250 is 5223507.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 70532250.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 117451 + ... + 118049.

It is an arithmetic number, because the mean of its divisors is an integer number (2772900).

Almost surely, 2^70532250 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70532250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88732800).

70532250 is an abundant number, since it is smaller than the sum of its proper divisors (106933350).

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

70532250 is a wasteful number, since it uses less digits than its factorization.

70532250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 776 (or 766 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 24.

The square root of 70532250 is about 8398.3480518492. The cubic root of 70532250 is about 413.1704432439.

Adding to 70532250 its reverse (5223507), we get a palindrome (75755757).

The spelling of 70532250 in words is "seventy million, five hundred thirty-two thousand, two hundred fifty".