31553132057 has 2 divisors, whose sum is σ = 31553132058. Its totient is φ = 31553132056.

The previous prime is 31553132029. The next prime is 31553132069. The reversal of 31553132057 is 75023135513.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17167288576 + 14385843481 = 131024^2 + 119941^2 .

It is a cyclic number.

It is not a de Polignac number, because 31553132057 - 2¹⁶ = 31553066521 is a prime.

It is not a weakly prime, because it can be changed into another prime (31553132027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15776566028 + 15776566029.

It is an arithmetic number, because the mean of its divisors is an integer number (15776566029).

Almost surely, 2^31553132057 is an apocalyptic number.

It is an amenable number.

31553132057 is a deficient number, since it is larger than the sum of its proper divisors (1).

31553132057 is an equidigital number, since it uses as much as digits as its factorization.

31553132057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 47250, while the sum is 35.

The spelling of 31553132057 in words is "thirty-one billion, five hundred fifty-three million, one hundred thirty-two thousand, fifty-seven".