100555355 has 4 divisors (see below), whose sum is σ = 120666432. Its totient is φ = 80444280.

The previous prime is 100555349. The next prime is 100555361. The reversal of 100555355 is 553555001.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (100555349) and next prime (100555361).

It is not a de Polignac number, because 100555355 - 2¹⁶ = 100489819 is a prime.

It is a super-2 number, since 2×100555355² = 20222758838352050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10055531 + ... + 10055540.

It is an arithmetic number, because the mean of its divisors is an integer number (30166608).

Almost surely, 2^100555355 is an apocalyptic number.

100555355 is a deficient number, since it is larger than the sum of its proper divisors (20111077).

100555355 is an equidigital number, since it uses as much as digits as its factorization.

100555355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20111076.

The product of its (nonzero) digits is 9375, while the sum is 29.

The square root of 100555355 is about 10027.7293042842. The cubic root of 100555355 is about 465.0165408229.

It can be divided in two parts, 100555 and 355, that multiplied together give a triangular number (35697025 = T₈₄₄₉).

The spelling of 100555355 in words is "one hundred million, five hundred fifty-five thousand, three hundred fifty-five".