551978651153 has 2 divisors, whose sum is σ = 551978651154. Its totient is φ = 551978651152.

The previous prime is 551978651141. The next prime is 551978651173. The reversal of 551978651153 is 351156879155.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 546812923024 + 5165728129 = 739468^2 + 71873^2 .

It is a cyclic number.

It is not a de Polignac number, because 551978651153 - 2⁸ = 551978650897 is a prime.

It is not a weakly prime, because it can be changed into another prime (551978651173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275989325576 + 275989325577.

It is an arithmetic number, because the mean of its divisors is an integer number (275989325577).

Almost surely, 2^551978651153 is an apocalyptic number.

It is an amenable number.

551978651153 is a deficient number, since it is larger than the sum of its proper divisors (1).

551978651153 is an equidigital number, since it uses as much as digits as its factorization.

551978651153 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5670000, while the sum is 56.

The spelling of 551978651153 in words is "five hundred fifty-one billion, nine hundred seventy-eight million, six hundred fifty-one thousand, one hundred fifty-three".