61533103 has 2 divisors, whose sum is σ = 61533104. Its totient is φ = 61533102.

The previous prime is 61533091. The next prime is 61533107. The reversal of 61533103 is 30133516.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 61533103 - 2⁵ = 61533071 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61533107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30766551 + 30766552.

It is an arithmetic number, because the mean of its divisors is an integer number (30766552).

Almost surely, 2^61533103 is an apocalyptic number.

61533103 is a deficient number, since it is larger than the sum of its proper divisors (1).

61533103 is an equidigital number, since it uses as much as digits as its factorization.

61533103 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 810, while the sum is 22.

The square root of 61533103 is about 7844.3038569398. The cubic root of 61533103 is about 394.7931470489.

Adding to 61533103 its reverse (30133516), we get a palindrome (91666619).

The spelling of 61533103 in words is "sixty-one million, five hundred thirty-three thousand, one hundred three".