97777755553 has 8 divisors (see below), whose sum is σ = 98618218400. Its totient is φ = 96940227168.

The previous prime is 97777755541. The next prime is 97777755623. The reversal of 97777755553 is 35555777779.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-97777755553 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (97777755533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 666663 + ... + 799996.

It is an arithmetic number, because the mean of its divisors is an integer number (12327277300).

Almost surely, 2^97777755553 is an apocalyptic number.

It is an amenable number.

97777755553 is a deficient number, since it is larger than the sum of its proper divisors (840462847).

97777755553 is a wasteful number, since it uses less digits than its factorization.

97777755553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1467231.

The product of its digits is 283618125, while the sum is 67.

The spelling of 97777755553 in words is "ninety-seven billion, seven hundred seventy-seven million, seven hundred fifty-five thousand, five hundred fifty-three".