60551021 has 2 divisors, whose sum is σ = 60551022. Its totient is φ = 60551020.

The previous prime is 60551003. The next prime is 60551033. The reversal of 60551021 is 12015506.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 43626025 + 16924996 = 6605^2 + 4114^2 .

It is a cyclic number.

It is not a de Polignac number, because 60551021 - 2¹⁰ = 60549997 is a prime.

It is a super-2 number, since 2×60551021² = 7332852288284882, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 60550984 and 60551002.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (60551221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30275510 + 30275511.

It is an arithmetic number, because the mean of its divisors is an integer number (30275511).

Almost surely, 2^60551021 is an apocalyptic number.

It is an amenable number.

60551021 is a deficient number, since it is larger than the sum of its proper divisors (1).

60551021 is an equidigital number, since it uses as much as digits as its factorization.

60551021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 60551021 is about 7781.4536559694. The cubic root of 60551021 is about 392.6815442100.

Adding to 60551021 its reverse (12015506), we get a palindrome (72566527).

The spelling of 60551021 in words is "sixty million, five hundred fifty-one thousand, twenty-one".