62421561 has 12 divisors (see below), whose sum is σ = 91251888. Its totient is φ = 41112504.

The previous prime is 62421559. The next prime is 62421571. The reversal of 62421561 is 16512426.

62421561 is a `hidden beast` number, since 62 + 42 + 1 + 561 = 666.

It is not a de Polignac number, because 62421561 - 2¹ = 62421559 is a prime.

It is a super-3 number, since 3×62421561³ (a number of 24 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (62421511) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 41035 + ... + 42528.

It is an arithmetic number, because the mean of its divisors is an integer number (7604324).

Almost surely, 2^62421561 is an apocalyptic number.

It is an amenable number.

62421561 is a deficient number, since it is larger than the sum of its proper divisors (28830327).

62421561 is a wasteful number, since it uses less digits than its factorization.

62421561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83652 (or 83649 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 62421561 is about 7900.7316749780. The cubic root of 62421561 is about 396.6841746229.

Adding to 62421561 its reverse (16512426), we get a palindrome (78933987).

The spelling of 62421561 in words is "sixty-two million, four hundred twenty-one thousand, five hundred sixty-one".