61433566 has 4 divisors (see below), whose sum is σ = 92150352. Its totient is φ = 30716782.

The previous prime is 61433549. The next prime is 61433569. The reversal of 61433566 is 66533416.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61433569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15358390 + ... + 15358393.

It is an arithmetic number, because the mean of its divisors is an integer number (23037588).

Almost surely, 2^61433566 is an apocalyptic number.

61433566 is a deficient number, since it is larger than the sum of its proper divisors (30716786).

61433566 is a wasteful number, since it uses less digits than its factorization.

61433566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30716785.

The product of its digits is 38880, while the sum is 34.

The square root of 61433566 is about 7837.9567490514. The cubic root of 61433566 is about 394.5801574463.

The spelling of 61433566 in words is "sixty-one million, four hundred thirty-three thousand, five hundred sixty-six".