77532752553 has 16 divisors (see below), whose sum is σ = 108845908800. Its totient is φ = 48955449600.

The previous prime is 77532752449. The next prime is 77532752599. The reversal of 77532752553 is 35525723577.

It is not a de Polignac number, because 77532752553 - 2⁹ = 77532752041 is a prime.

It is a super-2 number, since 2×77532752553² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 77532752496 and 77532752505.

It is not an unprimeable number, because it can be changed into a prime (77532712553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50853 + ... + 397053.

It is an arithmetic number, because the mean of its divisors is an integer number (6802869300).

Almost surely, 2^77532752553 is an apocalyptic number.

It is an amenable number.

77532752553 is a deficient number, since it is larger than the sum of its proper divisors (31313156247).

77532752553 is a wasteful number, since it uses less digits than its factorization.

77532752553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 350152.

The product of its digits is 7717500, while the sum is 51.

The spelling of 77532752553 in words is "seventy-seven billion, five hundred thirty-two million, seven hundred fifty-two thousand, five hundred fifty-three".