61533254003 has 16 divisors (see below), whose sum is σ = 68087466720. Its totient is φ = 55240517376.

The previous prime is 61533253939. The next prime is 61533254017. The reversal of 61533254003 is 30045233516.

It is a cyclic number.

It is not a de Polignac number, because 61533254003 - 2⁶ = 61533253939 is a prime.

It is not an unprimeable number, because it can be changed into a prime (61533254203) 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, 1116428 + ... + 1170246.

It is an arithmetic number, because the mean of its divisors is an integer number (4255466670).

Almost surely, 2^61533254003 is an apocalyptic number.

61533254003 is a deficient number, since it is larger than the sum of its proper divisors (6554212717).

61533254003 is a wasteful number, since it uses less digits than its factorization.

61533254003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56246.

The product of its (nonzero) digits is 32400, while the sum is 32.

Adding to 61533254003 its reverse (30045233516), we get a palindrome (91578487519).

The spelling of 61533254003 in words is "sixty-one billion, five hundred thirty-three million, two hundred fifty-four thousand, three".