1425220054521 has 32 divisors (see below), whose sum is σ = 2037144307968. Its totient is φ = 883996185600.

The previous prime is 1425220054513. The next prime is 1425220054633. The reversal of 1425220054521 is 1254500225241.

It is not a de Polignac number, because 1425220054521 - 2³ = 1425220054513 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1425220054501) 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, 8229421 + ... + 8400821.

It is an arithmetic number, because the mean of its divisors is an integer number (63660759624).

Almost surely, 2^{1425220054521} is an apocalyptic number.

It is an amenable number.

1425220054521 is a deficient number, since it is larger than the sum of its proper divisors (611924253447).

1425220054521 is a wasteful number, since it uses less digits than its factorization.

1425220054521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174721.

The product of its (nonzero) digits is 32000, while the sum is 33.

Adding to 1425220054521 its reverse (1254500225241), we get a palindrome (2679720279762).

The spelling of 1425220054521 in words is "one trillion, four hundred twenty-five billion, two hundred twenty million, fifty-four thousand, five hundred twenty-one".