7725101 has 4 divisors (see below), whose sum is σ = 7851804. Its totient is φ = 7598400.

The previous prime is 7725073. The next prime is 7725127. The reversal of 7725101 is 1015277.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 808201 + 6916900 = 899^2 + 2630^2 .

It is a cyclic number.

It is not a de Polignac number, because 7725101 - 2¹⁴ = 7708717 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7725131) 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, 63260 + ... + 63381.

It is an arithmetic number, because the mean of its divisors is an integer number (1962951).

Almost surely, 2^7725101 is an apocalyptic number.

It is an amenable number.

7725101 is a deficient number, since it is larger than the sum of its proper divisors (126703).

7725101 is a wasteful number, since it uses less digits than its factorization.

7725101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126702.

The product of its (nonzero) digits is 490, while the sum is 23.

The square root of 7725101 is about 2779.4065913428. The cubic root of 7725101 is about 197.6824229164.

The spelling of 7725101 in words is "seven million, seven hundred twenty-five thousand, one hundred one".