61654233 has 16 divisors (see below), whose sum is σ = 84268800. Its totient is φ = 40082640.

The previous prime is 61654231. The next prime is 61654249. The reversal of 61654233 is 33245616.

It is not a de Polignac number, because 61654233 - 2¹ = 61654231 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 61654233.

It is not an unprimeable number, because it can be changed into a prime (61654231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21858 + ... + 24516.

It is an arithmetic number, because the mean of its divisors is an integer number (5266800).

Almost surely, 2^61654233 is an apocalyptic number.

It is an amenable number.

61654233 is a deficient number, since it is larger than the sum of its proper divisors (22614567).

61654233 is a wasteful number, since it uses less digits than its factorization.

61654233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2852.

The product of its digits is 12960, while the sum is 30.

The square root of 61654233 is about 7852.0209500485. The cubic root of 61654233 is about 395.0520318148.

Adding to 61654233 its reverse (33245616), we get a palindrome (94899849).

The spelling of 61654233 in words is "sixty-one million, six hundred fifty-four thousand, two hundred thirty-three".