101055520 has 24 divisors (see below), whose sum is σ = 238744044. Its totient is φ = 40422144.

The previous prime is 101055511. The next prime is 101055523. The reversal of 101055520 is 25550101.

It can be written as a sum of positive squares in 2 ways, for example, as 99281296 + 1774224 = 9964^2 + 1332^2 .

It is not an unprimeable number, because it can be changed into a prime (101055523) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 315639 + ... + 315958.

Almost surely, 2^101055520 is an apocalyptic number.

101055520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101055520 is an abundant number, since it is smaller than the sum of its proper divisors (137688524).

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

101055520 is an equidigital number, since it uses as much as digits as its factorization.

101055520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 631612 (or 631604 counting only the distinct ones).

The product of its (nonzero) digits is 250, while the sum is 19.

The square root of 101055520 is about 10052.6374648646. The cubic root of 101055520 is about 465.7862675480.

It can be divided in two parts, 10105 and 5520, that added together give a 6-th power (15625 = 5⁶).

The spelling of 101055520 in words is "one hundred one million, fifty-five thousand, five hundred twenty".