5951521 has 2 divisors, whose sum is σ = 5951522. Its totient is φ = 5951520.

The previous prime is 5951489. The next prime is 5951531. The reversal of 5951521 is 1251595.

5951521 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4363921 + 1587600 = 2089^2 + 1260^2 .

It is a cyclic number.

It is not a de Polignac number, because 5951521 - 2⁵ = 5951489 is a prime.

5951521 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 5951521.

It is not a weakly prime, because it can be changed into another prime (5951531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2975760 + 2975761.

It is an arithmetic number, because the mean of its divisors is an integer number (2975761).

Almost surely, 2^5951521 is an apocalyptic number.

It is an amenable number.

5951521 is a deficient number, since it is larger than the sum of its proper divisors (1).

5951521 is an equidigital number, since it uses as much as digits as its factorization.

5951521 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2250, while the sum is 28.

The square root of 5951521 is about 2439.5739382113. The cubic root of 5951521 is about 181.2213341903.

It can be divided in two parts, 59515 and 21, that added together give a square (59536 = 244²).

The spelling of 5951521 in words is "five million, nine hundred fifty-one thousand, five hundred twenty-one".