10255421 has 8 divisors (see below), whose sum is σ = 11776800. Its totient is φ = 8832240.

The previous prime is 10255411. The next prime is 10255423. The reversal of 10255421 is 12455201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10255421 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10255393 and 10255402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10255423) 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, 24326 + ... + 24743.

It is an arithmetic number, because the mean of its divisors is an integer number (1472100).

Almost surely, 2^10255421 is an apocalyptic number.

10255421 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

10255421 is a deficient number, since it is larger than the sum of its proper divisors (1521379).

10255421 is a wasteful number, since it uses less digits than its factorization.

10255421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49099.

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 10255421 is about 3202.4086247698. The cubic root of 10255421 is about 217.2623625541.

It can be divided in two parts, 1025 and 5421, that added together give a palindrome (6446).

The spelling of 10255421 in words is "ten million, two hundred fifty-five thousand, four hundred twenty-one".