62543381 has 2 divisors, whose sum is σ = 62543382. Its totient is φ = 62543380.

The previous prime is 62543359. The next prime is 62543419. The reversal of 62543381 is 18334526.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39262756 + 23280625 = 6266^2 + 4825^2 .

It is a cyclic number.

It is not a de Polignac number, because 62543381 - 2¹⁸ = 62281237 is a prime.

It is a super-2 number, since 2×62543381² = 7823349013822322, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (62543281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31271690 + 31271691.

It is an arithmetic number, because the mean of its divisors is an integer number (31271691).

Almost surely, 2^62543381 is an apocalyptic number.

It is an amenable number.

62543381 is a deficient number, since it is larger than the sum of its proper divisors (1).

62543381 is an equidigital number, since it uses as much as digits as its factorization.

62543381 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17280, while the sum is 32.

The square root of 62543381 is about 7908.4373298396. The cubic root of 62543381 is about 396.9420591503.

The spelling of 62543381 in words is "sixty-two million, five hundred forty-three thousand, three hundred eighty-one".