1255554532551 has 8 divisors (see below), whose sum is σ = 1826261138304. Its totient is φ = 760942140920.

The previous prime is 1255554532537. The next prime is 1255554532553. The reversal of 1255554532551 is 1552354555521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1255554532551 - 2⁹ = 1255554532039 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1255554532551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1255554532553) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19023553491 + ... + 19023553556.

It is an arithmetic number, because the mean of its divisors is an integer number (228282642288).

Almost surely, 2^{1255554532551} is an apocalyptic number.

1255554532551 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1255554532551 is a deficient number, since it is larger than the sum of its proper divisors (570706605753).

1255554532551 is a wasteful number, since it uses less digits than its factorization.

1255554532551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38047107061.

The product of its digits is 3750000, while the sum is 48.

The spelling of 1255554532551 in words is "one trillion, two hundred fifty-five billion, five hundred fifty-four million, five hundred thirty-two thousand, five hundred fifty-one".