687452055 has 16 divisors (see below), whose sum is σ = 1102881120. Its totient is φ = 365655168.

The previous prime is 687452041. The next prime is 687452057. The reversal of 687452055 is 550254786.

687452055 = T₅₅₀₅ + T₅₅₀₆ + ... + T₅₅₄₉.

It is not a de Polignac number, because 687452055 - 2⁴ = 687452039 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 687451998 and 687452016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (687452057) 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, 55840 + ... + 67029.

It is an arithmetic number, because the mean of its divisors is an integer number (68930070).

Almost surely, 2^687452055 is an apocalyptic number.

687452055 is a deficient number, since it is larger than the sum of its proper divisors (415429065).

687452055 is a wasteful number, since it uses less digits than its factorization.

687452055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123250.

The product of its (nonzero) digits is 336000, while the sum is 42.

The square root of 687452055 is about 26219.3069130364. The cubic root of 687452055 is about 882.5665666817.

The spelling of 687452055 in words is "six hundred eighty-seven million, four hundred fifty-two thousand, fifty-five".