62616521 has 4 divisors (see below), whose sum is σ = 68308944. Its totient is φ = 56924100.

The previous prime is 62616517. The next prime is 62616599. The reversal of 62616521 is 12561626.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 62616521 - 2² = 62616517 is a prime.

It is not an unprimeable number, because it can be changed into a prime (62616221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2846195 + ... + 2846216.

It is an arithmetic number, because the mean of its divisors is an integer number (17077236).

Almost surely, 2^62616521 is an apocalyptic number.

It is an amenable number.

62616521 is a deficient number, since it is larger than the sum of its proper divisors (5692423).

62616521 is a wasteful number, since it uses less digits than its factorization.

62616521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5692422.

The product of its digits is 4320, while the sum is 29.

The square root of 62616521 is about 7913.0601539480. The cubic root of 62616521 is about 397.0967306333.

The spelling of 62616521 in words is "sixty-two million, six hundred sixteen thousand, five hundred twenty-one".