40987201553 has 2 divisors, whose sum is σ = 40987201554. Its totient is φ = 40987201552.

The previous prime is 40987201537. The next prime is 40987201561. The reversal of 40987201553 is 35510278904.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27671657104 + 13315544449 = 166348^2 + 115393^2 .

It is a cyclic number.

It is not a de Polignac number, because 40987201553 - 2⁴ = 40987201537 is a prime.

It is a super-2 number, since 2×40987201553² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (40987201253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20493600776 + 20493600777.

It is an arithmetic number, because the mean of its divisors is an integer number (20493600777).

Almost surely, 2^40987201553 is an apocalyptic number.

It is an amenable number.

40987201553 is a deficient number, since it is larger than the sum of its proper divisors (1).

40987201553 is an equidigital number, since it uses as much as digits as its factorization.

40987201553 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 302400, while the sum is 44.

The spelling of 40987201553 in words is "forty billion, nine hundred eighty-seven million, two hundred one thousand, five hundred fifty-three".