10550020 has 24 divisors (see below), whose sum is σ = 23859864. Its totient is φ = 3895296.

The previous prime is 10550003. The next prime is 10550027. The reversal of 10550020 is 2005501.

It can be written as a sum of positive squares in 4 ways, for example, as 399424 + 10150596 = 632^2 + 3186^2 .

It is a super-2 number, since 2×10550020² = 222605844000800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10550027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20029 + ... + 20548.

It is an arithmetic number, because the mean of its divisors is an integer number (994161).

Almost surely, 2^10550020 is an apocalyptic number.

10550020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10550020 is an abundant number, since it is smaller than the sum of its proper divisors (13309844).

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

10550020 is a wasteful number, since it uses less digits than its factorization.

10550020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40599 (or 40597 counting only the distinct ones).

The product of its (nonzero) digits is 50, while the sum is 13.

The square root of 10550020 is about 3248.0794325262. The cubic root of 10550020 is about 219.3231262104.

Adding to 10550020 its reverse (2005501), we get a palindrome (12555521).

The spelling of 10550020 in words is "ten million, five hundred fifty thousand, twenty".