10055640 has 64 divisors (see below), whose sum is σ = 34479360. Its totient is φ = 2298240.

The previous prime is 10055629. The next prime is 10055651. The reversal of 10055640 is 4655001.

10055640 = T₄₂₇ + T₄₂₈ + ... + T₅₁₆.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (10055629) and next prime (10055651).

It is a super-2 number, since 2×10055640² = 202231791619200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5146 + ... + 6825.

It is an arithmetic number, because the mean of its divisors is an integer number (538740).

Almost surely, 2^10055640 is an apocalyptic number.

10055640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10055640 is an abundant number, since it is smaller than the sum of its proper divisors (24423720).

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

10055640 is a wasteful number, since it uses less digits than its factorization.

10055640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11992 (or 11988 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 10055640 is about 3171.0629132832. The cubic root of 10055640 is about 215.8423060260.

The spelling of 10055640 in words is "ten million, fifty-five thousand, six hundred forty".