10021425 has 24 divisors (see below), whose sum is σ = 16978080. Its totient is φ = 5212800.

The previous prime is 10021423. The next prime is 10021439. The reversal of 10021425 is 52412001.

It is not a de Polignac number, because 10021425 - 2¹ = 10021423 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (10021423) 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 23 ways as a sum of consecutive naturals, for example, 1446 + ... + 4704.

It is an arithmetic number, because the mean of its divisors is an integer number (707420).

Almost surely, 2^10021425 is an apocalyptic number.

10021425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

10021425 is a deficient number, since it is larger than the sum of its proper divisors (6956655).

10021425 is a wasteful number, since it uses less digits than its factorization.

10021425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3313 (or 3308 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 10021425 is about 3165.6634375751. The cubic root of 10021425 is about 215.5972217944.

Adding to 10021425 its reverse (52412001), we get a palindrome (62433426).

The spelling of 10021425 in words is "ten million, twenty-one thousand, four hundred twenty-five".