1425775434555 has 32 divisors (see below), whose sum is σ = 2505710615040. Its totient is φ = 689070412800.

The previous prime is 1425775434497. The next prime is 1425775434557. The reversal of 1425775434555 is 5554345775241.

It is not a de Polignac number, because 1425775434555 - 2¹⁰ = 1425775433531 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a junction number, because it is equal to n+sod(n) for n = 1425775434495 and 1425775434504.

It is not an unprimeable number, because it can be changed into a prime (1425775434557) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 108748246 + ... + 108761355.

It is an arithmetic number, because the mean of its divisors is an integer number (78303456720).

Almost surely, 2^{1425775434555} is an apocalyptic number.

1425775434555 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1425775434555 is a deficient number, since it is larger than the sum of its proper divisors (1079935180485).

1425775434555 is a wasteful number, since it uses less digits than its factorization.

1425775434555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217509651.

The product of its digits is 58800000, while the sum is 57.

The spelling of 1425775434555 in words is "one trillion, four hundred twenty-five billion, seven hundred seventy-five million, four hundred thirty-four thousand, five hundred fifty-five".