55195816880587 has 2 divisors, whose sum is σ = 55195816880588. Its totient is φ = 55195816880586.

The previous prime is 55195816880579. The next prime is 55195816880609. The reversal of 55195816880587 is 78508861859155.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55195816880587 - 2³ = 55195816880579 is a prime.

It is a super-2 number, since 2×55195816880587² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (55195816880287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27597908440293 + 27597908440294.

It is an arithmetic number, because the mean of its divisors is an integer number (27597908440294).

Almost surely, 2^{55195816880587} is an apocalyptic number.

55195816880587 is a deficient number, since it is larger than the sum of its proper divisors (1).

55195816880587 is an equidigital number, since it uses as much as digits as its factorization.

55195816880587 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 967680000, while the sum is 76.

The spelling of 55195816880587 in words is "fifty-five trillion, one hundred ninety-five billion, eight hundred sixteen million, eight hundred eighty thousand, five hundred eighty-seven".