5725921 has 8 divisors (see below), whose sum is σ = 5846400. Its totient is φ = 5606832.

The previous prime is 5725913. The next prime is 5725927. The reversal of 5725921 is 1295275.

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

It is a cyclic number.

It is not a de Polignac number, because 5725921 - 2³ = 5725913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5725927) 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, 12136 + ... + 12598.

It is an arithmetic number, because the mean of its divisors is an integer number (730800).

Almost surely, 2^5725921 is an apocalyptic number.

It is an amenable number.

5725921 is a deficient number, since it is larger than the sum of its proper divisors (120479).

5725921 is a wasteful number, since it uses less digits than its factorization.

5725921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 695.

The product of its digits is 6300, while the sum is 31.

The square root of 5725921 is about 2392.8896756850. The cubic root of 5725921 is about 178.9019676892.

It can be divided in two parts, 5725 and 921, that multiplied together give a palindrome (5272725).

The spelling of 5725921 in words is "five million, seven hundred twenty-five thousand, nine hundred twenty-one".