70909055 has 16 divisors (see below), whose sum is σ = 97395264. Its totient is φ = 48549120.

The previous prime is 70909051. The next prime is 70909063. The reversal of 70909055 is 55090907.

It is not a de Polignac number, because 70909055 - 2² = 70909051 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70909051) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31859 + ... + 34011.

It is an arithmetic number, because the mean of its divisors is an integer number (6087204).

Almost surely, 2^70909055 is an apocalyptic number.

70909055 is a deficient number, since it is larger than the sum of its proper divisors (26486209).

70909055 is a wasteful number, since it uses less digits than its factorization.

70909055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3106.

The product of its (nonzero) digits is 14175, while the sum is 35.

The square root of 70909055 is about 8420.7514510286. The cubic root of 70909055 is about 413.9048981457.

The spelling of 70909055 in words is "seventy million, nine hundred nine thousand, fifty-five".