62520421 has 4 divisors (see below), whose sum is σ = 63104832. Its totient is φ = 61936012.

The previous prime is 62520401. The next prime is 62520439. The reversal of 62520421 is 12402526.

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 62520421 - 2⁵ = 62520389 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 62520392 and 62520401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (62520401) 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, 292045 + ... + 292258.

It is an arithmetic number, because the mean of its divisors is an integer number (15776208).

Almost surely, 2^62520421 is an apocalyptic number.

It is an amenable number.

62520421 is a deficient number, since it is larger than the sum of its proper divisors (584411).

62520421 is a wasteful number, since it uses less digits than its factorization.

62520421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 584410.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 62520421 is about 7906.9855823822. The cubic root of 62520421 is about 396.8934800414.

Adding to 62520421 its reverse (12402526), we get a palindrome (74922947).

The spelling of 62520421 in words is "sixty-two million, five hundred twenty thousand, four hundred twenty-one".