70557030 has 48 divisors (see below), whose sum is σ = 186202224. Its totient is φ = 18532800.

The previous prime is 70557017. The next prime is 70557061. The reversal of 70557030 is 3075507.

It is a junction number, because it is equal to n+sod(n) for n = 70556985 and 70557003.

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, 180 + ... + 11880.

It is an arithmetic number, because the mean of its divisors is an integer number (3879213).

Almost surely, 2^70557030 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70557030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93101112).

70557030 is an abundant number, since it is smaller than the sum of its proper divisors (115645194).

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

70557030 is a wasteful number, since it uses less digits than its factorization.

70557030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11781 (or 11778 counting only the distinct ones).

The product of its (nonzero) digits is 3675, while the sum is 27.

The square root of 70557030 is about 8399.8232124254. The cubic root of 70557030 is about 413.2188237828.

It can be divided in two parts, 705570 and 30, that added together give a square (705600 = 840²).

The spelling of 70557030 in words is "seventy million, five hundred fifty-seven thousand, thirty".