5250921 has 8 divisors (see below), whose sum is σ = 7539840. Its totient is φ = 3231312.

The previous prime is 5250919. The next prime is 5250953. The reversal of 5250921 is 1290525.

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

It is not a de Polignac number, because 5250921 - 2¹ = 5250919 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a junction number, because it is equal to n+sod(n) for n = 5250891 and 5250900.

It is not an unprimeable number, because it can be changed into a prime (5250961) 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 7 ways as a sum of consecutive naturals, for example, 67281 + ... + 67358.

It is an arithmetic number, because the mean of its divisors is an integer number (942480).

Almost surely, 2^5250921 is an apocalyptic number.

It is an amenable number.

5250921 is a deficient number, since it is larger than the sum of its proper divisors (2288919).

5250921 is a wasteful number, since it uses less digits than its factorization.

5250921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134655.

The product of its (nonzero) digits is 900, while the sum is 24.

The square root of 5250921 is about 2291.4888173412. The cubic root of 5250921 is about 173.8114948899.

The spelling of 5250921 in words is "five million, two hundred fifty thousand, nine hundred twenty-one".