100055070 has 24 divisors (see below), whose sum is σ = 260143416. Its totient is φ = 26681328.

The previous prime is 100055063. The next prime is 100055071. The reversal of 100055070 is 70550001.

It is a happy number.

It is a super-2 number, since 2×100055070² = 20022034065409800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100055071) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 555772 + ... + 555951.

It is an arithmetic number, because the mean of its divisors is an integer number (10839309).

Almost surely, 2^100055070 is an apocalyptic number.

100055070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

100055070 is an abundant number, since it is smaller than the sum of its proper divisors (160088346).

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

100055070 is a wasteful number, since it uses less digits than its factorization.

100055070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1111736 (or 1111733 counting only the distinct ones).

The product of its (nonzero) digits is 175, while the sum is 18.

The square root of 100055070 is about 10002.7531210162. The cubic root of 100055070 is about 464.2440718245.

The spelling of 100055070 in words is "one hundred million, fifty-five thousand, seventy".