255477361501 has 2 divisors, whose sum is σ = 255477361502. Its totient is φ = 255477361500.

The previous prime is 255477361493. The next prime is 255477361523. The reversal of 255477361501 is 105163774552.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 254897755876 + 579605625 = 504874^2 + 24075^2 .

It is a cyclic number.

It is not a de Polignac number, because 255477361501 - 2³ = 255477361493 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (255477361301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127738680750 + 127738680751.

It is an arithmetic number, because the mean of its divisors is an integer number (127738680751).

Almost surely, 2^255477361501 is an apocalyptic number.

It is an amenable number.

255477361501 is a deficient number, since it is larger than the sum of its proper divisors (1).

255477361501 is an equidigital number, since it uses as much as digits as its factorization.

255477361501 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 882000, while the sum is 46.

The spelling of 255477361501 in words is "two hundred fifty-five billion, four hundred seventy-seven million, three hundred sixty-one thousand, five hundred one".