61442633 has 4 divisors (see below), whose sum is σ = 70220160. Its totient is φ = 52665108.

The previous prime is 61442629. The next prime is 61442639. The reversal of 61442633 is 33624416.

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 61442633 - 2² = 61442629 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 61442596 and 61442605.

It is not an unprimeable number, because it can be changed into a prime (61442639) 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, 4388753 + ... + 4388766.

It is an arithmetic number, because the mean of its divisors is an integer number (17555040).

Almost surely, 2^61442633 is an apocalyptic number.

It is an amenable number.

61442633 is a deficient number, since it is larger than the sum of its proper divisors (8777527).

61442633 is an equidigital number, since it uses as much as digits as its factorization.

61442633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8777526.

The product of its digits is 10368, while the sum is 29.

The square root of 61442633 is about 7838.5351310050. The cubic root of 61442633 is about 394.5995685627.

The spelling of 61442633 in words is "sixty-one million, four hundred forty-two thousand, six hundred thirty-three".