61350533 has 2 divisors, whose sum is σ = 61350534. Its totient is φ = 61350532.

The previous prime is 61350517. The next prime is 61350539. The reversal of 61350533 is 33505316.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40538689 + 20811844 = 6367^2 + 4562^2 .

It is a cyclic number.

It is not a de Polignac number, because 61350533 - 2⁴ = 61350517 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61350539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30675266 + 30675267.

It is an arithmetic number, because the mean of its divisors is an integer number (30675267).

Almost surely, 2^61350533 is an apocalyptic number.

It is an amenable number.

61350533 is a deficient number, since it is larger than the sum of its proper divisors (1).

61350533 is an equidigital number, since it uses as much as digits as its factorization.

61350533 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4050, while the sum is 26.

The square root of 61350533 is about 7832.6581056497. The cubic root of 61350533 is about 394.4023070830.

Adding to 61350533 its reverse (33505316), we get a palindrome (94855849).

The spelling of 61350533 in words is "sixty-one million, three hundred fifty thousand, five hundred thirty-three".