7725001 has 4 divisors (see below), whose sum is σ = 8131600. Its totient is φ = 7318404.

The previous prime is 7724999. The next prime is 7725017. The reversal of 7725001 is 1005277.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 7725001 - 2¹ = 7724999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7725031) 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, 203271 + ... + 203308.

It is an arithmetic number, because the mean of its divisors is an integer number (2032900).

Almost surely, 2^7725001 is an apocalyptic number.

It is an amenable number.

7725001 is a deficient number, since it is larger than the sum of its proper divisors (406599).

7725001 is a wasteful number, since it uses less digits than its factorization.

7725001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 406598.

The product of its (nonzero) digits is 490, while the sum is 22.

The square root of 7725001 is about 2779.3886018331. The cubic root of 7725001 is about 197.6815699252.

The spelling of 7725001 in words is "seven million, seven hundred twenty-five thousand, one".