655155525749 has 2 divisors, whose sum is σ = 655155525750. Its totient is φ = 655155525748.

The previous prime is 655155525733. The next prime is 655155525793. The reversal of 655155525749 is 947525551556.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 641040422500 + 14115103249 = 800650^2 + 118807^2 .

It is a cyclic number.

It is not a de Polignac number, because 655155525749 - 2⁴ = 655155525733 is a prime.

It is a super-2 number, since 2×655155525749² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (655155525719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 327577762874 + 327577762875.

It is an arithmetic number, because the mean of its divisors is an integer number (327577762875).

Almost surely, 2^655155525749 is an apocalyptic number.

It is an amenable number.

655155525749 is a deficient number, since it is larger than the sum of its proper divisors (1).

655155525749 is an equidigital number, since it uses as much as digits as its factorization.

655155525749 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 47250000, while the sum is 59.

The spelling of 655155525749 in words is "six hundred fifty-five billion, one hundred fifty-five million, five hundred twenty-five thousand, seven hundred forty-nine".