10055720 has 16 divisors (see below), whose sum is σ = 22625460. Its totient is φ = 4022272.

The previous prime is 10055719. The next prime is 10055723. The reversal of 10055720 is 2755001.

It can be written as a sum of positive squares in 2 ways, for example, as 9897316 + 158404 = 3146^2 + 398^2 .

It is a super-2 number, since 2×10055720² = 202235009436800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 10055692 and 10055701.

It is not an unprimeable number, because it can be changed into a prime (10055723) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 125657 + ... + 125736.

Almost surely, 2^10055720 is an apocalyptic number.

10055720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10055720 is an abundant number, since it is smaller than the sum of its proper divisors (12569740).

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

10055720 is a wasteful number, since it uses less digits than its factorization.

10055720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251404 (or 251400 counting only the distinct ones).

The product of its (nonzero) digits is 350, while the sum is 20.

The square root of 10055720 is about 3171.0755273251. The cubic root of 10055720 is about 215.8428784192.

Subtracting from 10055720 its product of nonzero digits (350), we obtain a triangular number (10055370 = T₄₄₈₄).

The spelling of 10055720 in words is "ten million, fifty-five thousand, seven hundred twenty".