61240633 has 4 divisors (see below), whose sum is σ = 61928820. Its totient is φ = 60552448.

The previous prime is 61240631. The next prime is 61240679. The reversal of 61240633 is 33604216.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 24176889 + 37063744 = 4917^2 + 6088^2 .

It is a cyclic number.

It is not a de Polignac number, because 61240633 - 2¹ = 61240631 is a prime.

It is a super-3 number, since 3×61240633³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 61240598 and 61240607.

It is not an unprimeable number, because it can be changed into a prime (61240631) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 343960 + ... + 344137.

It is an arithmetic number, because the mean of its divisors is an integer number (15482205).

Almost surely, 2^61240633 is an apocalyptic number.

It is an amenable number.

61240633 is a deficient number, since it is larger than the sum of its proper divisors (688187).

61240633 is an equidigital number, since it uses as much as digits as its factorization.

61240633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 688186.

The product of its (nonzero) digits is 2592, while the sum is 25.

The square root of 61240633 is about 7825.6394626893. The cubic root of 61240633 is about 394.1666627234.

Adding to 61240633 its reverse (33604216), we get a palindrome (94844849).

The spelling of 61240633 in words is "sixty-one million, two hundred forty thousand, six hundred thirty-three".