60521420 has 12 divisors (see below), whose sum is σ = 127095024. Its totient is φ = 24208560.

The previous prime is 60521413. The next prime is 60521423. The reversal of 60521420 is 2412506.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 3026071 = 60521420 / (6 + 0 + 5 + 2 + 1 + 4 + 2 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 60521392 and 60521401.

It is not an unprimeable number, because it can be changed into a prime (60521423) 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, 1513016 + ... + 1513055.

It is an arithmetic number, because the mean of its divisors is an integer number (10591252).

Almost surely, 2^60521420 is an apocalyptic number.

It is an amenable number.

60521420 is an abundant number, since it is smaller than the sum of its proper divisors (66573604).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

60521420 is a wasteful number, since it uses less digits than its factorization.

60521420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3026080 (or 3026078 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 60521420 is about 7779.5514009485. The cubic root of 60521420 is about 392.6175449532.

Adding to 60521420 its reverse (2412506), we get a palindrome (62933926).

The spelling of 60521420 in words is "sixty million, five hundred twenty-one thousand, four hundred twenty".