5601531 has 8 divisors (see below), whose sum is σ = 8043280. Its totient is φ = 3447072.

The previous prime is 5601527. The next prime is 5601593. The reversal of 5601531 is 1351065.

It is a happy number.

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

It is not a de Polignac number, because 5601531 - 2² = 5601527 is a prime.

It is a super-2 number, since 2×5601531² = 62754299087922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5601498 and 5601507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5601511) 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, 71776 + ... + 71853.

It is an arithmetic number, because the mean of its divisors is an integer number (1005410).

Almost surely, 2^5601531 is an apocalyptic number.

5601531 is a deficient number, since it is larger than the sum of its proper divisors (2441749).

5601531 is a wasteful number, since it uses less digits than its factorization.

5601531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143645.

The product of its (nonzero) digits is 450, while the sum is 21.

The square root of 5601531 is about 2366.7553739244. The cubic root of 5601531 is about 177.5969819814.

Adding to 5601531 its reverse (1351065), we get a palindrome (6952596).

The spelling of 5601531 in words is "five million, six hundred one thousand, five hundred thirty-one".