62581 has 2 divisors, whose sum is σ = 62582. Its totient is φ = 62580.

The previous prime is 62563. The next prime is 62591. The reversal of 62581 is 18526.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 62500 + 81 = 250^2 + 9^2 .

It is a cyclic number.

It is not a de Polignac number, because 62581 - 2⁵ = 62549 is a prime.

It is a super-2 number, since 2×62581² = 7832763122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (62501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31290 + 31291.

It is an arithmetic number, because the mean of its divisors is an integer number (31291).

2⁶²⁵⁸¹ is an apocalyptic number.

It is an amenable number.

62581 is a deficient number, since it is larger than the sum of its proper divisors (1).

62581 is an equidigital number, since it uses as much as digits as its factorization.

62581 is an evil number, because the sum of its binary digits is even.

The product of its digits is 480, while the sum is 22.

The square root of 62581 is about 250.1619475460. The cubic root of 62581 is about 39.7021628297.

It can be divided in two parts, 625 and 81, that multiplied together give a 4-th power (50625 = 15⁴).

The spelling of 62581 in words is "sixty-two thousand, five hundred eighty-one".