31264553 has 2 divisors, whose sum is σ = 31264554. Its totient is φ = 31264552.

The previous prime is 31264511. The next prime is 31264561. The reversal of 31264553 is 35546213.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 31225744 + 38809 = 5588^2 + 197^2 .

It is a cyclic number.

It is not a de Polignac number, because 31264553 - 2⁶ = 31264489 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (31260553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15632276 + 15632277.

It is an arithmetic number, because the mean of its divisors is an integer number (15632277).

Almost surely, 2^31264553 is an apocalyptic number.

It is an amenable number.

31264553 is a deficient number, since it is larger than the sum of its proper divisors (1).

31264553 is an equidigital number, since it uses as much as digits as its factorization.

31264553 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10800, while the sum is 29.

The square root of 31264553 is about 5591.4714521314. The cubic root of 31264553 is about 315.0291499017.

The spelling of 31264553 in words is "thirty-one million, two hundred sixty-four thousand, five hundred fifty-three".