62540221 has 8 divisors (see below), whose sum is σ = 63987840. Its totient is φ = 61097568.

The previous prime is 62540209. The next prime is 62540227. The reversal of 62540221 is 12204526.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 62540221 - 2²¹ = 60443069 is a prime.

It is a super-2 number, since 2×62540221² = 7822558485457682, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 62540192 and 62540201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (62540227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38065 + ... + 39673.

It is an arithmetic number, because the mean of its divisors is an integer number (7998480).

Almost surely, 2^62540221 is an apocalyptic number.

It is an amenable number.

62540221 is a deficient number, since it is larger than the sum of its proper divisors (1447619).

62540221 is a wasteful number, since it uses less digits than its factorization.

62540221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2483.

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

The square root of 62540221 is about 7908.2375406914. The cubic root of 62540221 is about 396.9353738810.

Adding to 62540221 its reverse (12204526), we get a palindrome (74744747).

The spelling of 62540221 in words is "sixty-two million, five hundred forty thousand, two hundred twenty-one".