61232751553 has 2 divisors, whose sum is σ = 61232751554. Its totient is φ = 61232751552.

The previous prime is 61232751533. The next prime is 61232751589. The reversal of 61232751553 is 35515723216.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 37236263089 + 23996488464 = 192967^2 + 154908^2 .

It is a cyclic number.

It is not a de Polignac number, because 61232751553 - 2⁵ = 61232751521 is a prime.

It is not a weakly prime, because it can be changed into another prime (61232751523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30616375776 + 30616375777.

It is an arithmetic number, because the mean of its divisors is an integer number (30616375777).

Almost surely, 2^61232751553 is an apocalyptic number.

It is an amenable number.

61232751553 is a deficient number, since it is larger than the sum of its proper divisors (1).

61232751553 is an equidigital number, since it uses as much as digits as its factorization.

61232751553 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 189000, while the sum is 40.

The spelling of 61232751553 in words is "sixty-one billion, two hundred thirty-two million, seven hundred fifty-one thousand, five hundred fifty-three".