40147047553 has 2 divisors, whose sum is σ = 40147047554. Its totient is φ = 40147047552.

The previous prime is 40147047497. The next prime is 40147047559. The reversal of 40147047553 is 35574074104.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 36699831184 + 3447216369 = 191572^2 + 58713^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40147047553 is a prime.

It is a super-2 number, since 2×40147047553² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (40147047559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20073523776 + 20073523777.

It is an arithmetic number, because the mean of its divisors is an integer number (20073523777).

Almost surely, 2^40147047553 is an apocalyptic number.

It is an amenable number.

40147047553 is a deficient number, since it is larger than the sum of its proper divisors (1).

40147047553 is an equidigital number, since it uses as much as digits as its factorization.

40147047553 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 235200, while the sum is 40.

The spelling of 40147047553 in words is "forty billion, one hundred forty-seven million, forty-seven thousand, five hundred fifty-three".