7552661 has 8 divisors (see below), whose sum is σ = 7673400. Its totient is φ = 7433152.

The previous prime is 7552627. The next prime is 7552663. The reversal of 7552661 is 1662557.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 3062500 + 4490161 = 1750^2 + 2119^2 .

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 7552661 - 2²² = 3358357 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7552663) 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, 25631 + ... + 25923.

It is an arithmetic number, because the mean of its divisors is an integer number (959175).

Almost surely, 2^7552661 is an apocalyptic number.

It is an amenable number.

7552661 is a deficient number, since it is larger than the sum of its proper divisors (120739).

7552661 is a wasteful number, since it uses less digits than its factorization.

7552661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 615.

The product of its digits is 12600, while the sum is 32.

The square root of 7552661 is about 2748.2105086765. The cubic root of 7552661 is about 196.2004491721.

The spelling of 7552661 in words is "seven million, five hundred fifty-two thousand, six hundred sixty-one".