5251541 has 2 divisors, whose sum is σ = 5251542. Its totient is φ = 5251540.

The previous prime is 5251537. The next prime is 5251549. The reversal of 5251541 is 1451525.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5044516 + 207025 = 2246^2 + 455^2 .

It is a cyclic number.

It is not a de Polignac number, because 5251541 - 2² = 5251537 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5251549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2625770 + 2625771.

It is an arithmetic number, because the mean of its divisors is an integer number (2625771).

Almost surely, 2^5251541 is an apocalyptic number.

It is an amenable number.

5251541 is a deficient number, since it is larger than the sum of its proper divisors (1).

5251541 is an equidigital number, since it uses as much as digits as its factorization.

5251541 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1000, while the sum is 23.

The square root of 5251541 is about 2291.6240965743. The cubic root of 5251541 is about 173.8183355239.

The spelling of 5251541 in words is "five million, two hundred fifty-one thousand, five hundred forty-one".