55787606413 has 16 divisors (see below), whose sum is σ = 69726867840. Its totient is φ = 43362432000.

The previous prime is 55787606387. The next prime is 55787606449. The reversal of 55787606413 is 31460678755.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 55787606413 - 2⁹ = 55787605901 is a prime.

It is a super-2 number, since 2×55787606413² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55787606813) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 872508 + ... + 934261.

It is an arithmetic number, because the mean of its divisors is an integer number (4357929240).

Almost surely, 2^55787606413 is an apocalyptic number.

It is an amenable number.

55787606413 is a deficient number, since it is larger than the sum of its proper divisors (13939261427).

55787606413 is a wasteful number, since it uses less digits than its factorization.

55787606413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1807188.

The product of its (nonzero) digits is 4233600, while the sum is 52.

The spelling of 55787606413 in words is "fifty-five billion, seven hundred eighty-seven million, six hundred six thousand, four hundred thirteen".