70855554 has 64 divisors (see below), whose sum is σ = 178513920. Its totient is φ = 18213120.

The previous prime is 70855549. The next prime is 70855567. The reversal of 70855554 is 45555807.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 46842 + ... + 48330.

It is an arithmetic number, because the mean of its divisors is an integer number (2789280).

Almost surely, 2^70855554 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70855554, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89256960).

70855554 is an abundant number, since it is smaller than the sum of its proper divisors (107658366).

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

70855554 is a wasteful number, since it uses less digits than its factorization.

70855554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1615.

The product of its (nonzero) digits is 140000, while the sum is 39.

The square root of 70855554 is about 8417.5741160978. The cubic root of 70855554 is about 413.8007746427.

The spelling of 70855554 in words is "seventy million, eight hundred fifty-five thousand, five hundred fifty-four".