60521987 has 2 divisors, whose sum is σ = 60521988. Its totient is φ = 60521986.

The previous prime is 60521959. The next prime is 60522019. The reversal of 60521987 is 78912506.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 60521987 - 2¹⁰ = 60520963 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 60521987.

It is not a weakly prime, because it can be changed into another prime (60521917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30260993 + 30260994.

It is an arithmetic number, because the mean of its divisors is an integer number (30260994).

Almost surely, 2^60521987 is an apocalyptic number.

60521987 is a deficient number, since it is larger than the sum of its proper divisors (1).

60521987 is an equidigital number, since it uses as much as digits as its factorization.

60521987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30240, while the sum is 38.

The square root of 60521987 is about 7779.5878425531. The cubic root of 60521987 is about 392.6187710395.

The spelling of 60521987 in words is "sixty million, five hundred twenty-one thousand, nine hundred eighty-seven".