10251820 has 12 divisors (see below), whose sum is σ = 21528864. Its totient is φ = 4100720.

The previous prime is 10251817. The next prime is 10251823. The reversal of 10251820 is 2815201.

10251820 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (10251817) and next prime (10251823).

It is not an unprimeable number, because it can be changed into a prime (10251823) 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, 256276 + ... + 256315.

It is an arithmetic number, because the mean of its divisors is an integer number (1794072).

Almost surely, 2^10251820 is an apocalyptic number.

10251820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10251820 is an abundant number, since it is smaller than the sum of its proper divisors (11277044).

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

10251820 is a wasteful number, since it uses less digits than its factorization.

10251820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 512600 (or 512598 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 19.

The square root of 10251820 is about 3201.8463423469. The cubic root of 10251820 is about 217.2369303671.

The spelling of 10251820 in words is "ten million, two hundred fifty-one thousand, eight hundred twenty".