62540521 has 2 divisors, whose sum is σ = 62540522. Its totient is φ = 62540520.

The previous prime is 62540507. The next prime is 62540549. The reversal of 62540521 is 12504526.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 54922921 + 7617600 = 7411^2 + 2760^2 .

It is a cyclic number.

It is not a de Polignac number, because 62540521 - 2⁷ = 62540393 is a prime.

It is a super-2 number, since 2×62540521² = 7822633533902882, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (62540561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31270260 + 31270261.

It is an arithmetic number, because the mean of its divisors is an integer number (31270261).

Almost surely, 2^62540521 is an apocalyptic number.

It is an amenable number.

62540521 is a deficient number, since it is larger than the sum of its proper divisors (1).

62540521 is an equidigital number, since it uses as much as digits as its factorization.

62540521 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 62540521 is about 7908.2565082324. The cubic root of 62540521 is about 396.9360085681.

The spelling of 62540521 in words is "sixty-two million, five hundred forty thousand, five hundred twenty-one".