20255651055 has 24 divisors (see below), whose sum is σ = 35249694480. Its totient is φ = 10759968000.

The previous prime is 20255650997. The next prime is 20255651077. The reversal of 20255651055 is 55015655202.

20255651055 is a `hidden beast` number, since 2 + 0 + 2 + 556 + 51 + 0 + 55 = 666.

It is not a de Polignac number, because 20255651055 - 2⁶ = 20255650991 is a prime.

It is a super-2 number, since 2×20255651055² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 885370 + ... + 907959.

It is an arithmetic number, because the mean of its divisors is an integer number (1468737270).

Almost surely, 2^20255651055 is an apocalyptic number.

20255651055 is a deficient number, since it is larger than the sum of its proper divisors (14994043425).

20255651055 is a wasteful number, since it uses less digits than its factorization.

20255651055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1793591 (or 1793588 counting only the distinct ones).

The product of its (nonzero) digits is 75000, while the sum is 36.

The spelling of 20255651055 in words is "twenty billion, two hundred fifty-five million, six hundred fifty-one thousand, fifty-five".