51562541 has 2 divisors, whose sum is σ = 51562542. Its totient is φ = 51562540.

The previous prime is 51562531. The next prime is 51562591. The reversal of 51562541 is 14526515.

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., 48706441 + 2856100 = 6979^2 + 1690^2 .

It is a cyclic number.

It is not a de Polignac number, because 51562541 - 2¹⁸ = 51300397 is a prime.

It is equal to p_3089162 and since 51562541 and 3089162 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51562501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25781270 + 25781271.

It is an arithmetic number, because the mean of its divisors is an integer number (25781271).

Almost surely, 2^51562541 is an apocalyptic number.

It is an amenable number.

51562541 is a deficient number, since it is larger than the sum of its proper divisors (1).

51562541 is an equidigital number, since it uses as much as digits as its factorization.

51562541 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6000, while the sum is 29.

The square root of 51562541 is about 7180.7061630455. The cubic root of 51562541 is about 372.2014868906.

The spelling of 51562541 in words is "fifty-one million, five hundred sixty-two thousand, five hundred forty-one".