70856250 has 48 divisors (see below), whose sum is σ = 177176160. Its totient is φ = 18890000.

The previous prime is 70856249. The next prime is 70856267. The reversal of 70856250 is 5265807.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16861 + ... + 20639.

It is an arithmetic number, because the mean of its divisors is an integer number (3691170).

Almost surely, 2^70856250 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70856250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88588080).

70856250 is an abundant number, since it is smaller than the sum of its proper divisors (106319910).

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

70856250 is an equidigital number, since it uses as much as digits as its factorization.

70856250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3809 (or 3789 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 33.

The square root of 70856250 is about 8417.6154580736. The cubic root of 70856250 is about 413.8021295325.

The spelling of 70856250 in words is "seventy million, eight hundred fifty-six thousand, two hundred fifty".