1054521550425 has 72 divisors (see below), whose sum is σ = 1997905520704. Its totient is φ = 480773220480.

The previous prime is 1054521550409. The next prime is 1054521550487. The reversal of 1054521550425 is 5240551254501.

It is a happy number.

It is not a de Polignac number, because 1054521550425 - 2⁴ = 1054521550409 is a prime.

It is a super-2 number, since 2×1054521550425² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 77004879 + ... + 77018571.

Almost surely, 2^{1054521550425} is an apocalyptic number.

1054521550425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1054521550425 is a deficient number, since it is larger than the sum of its proper divisors (943383970279).

1054521550425 is an equidigital number, since it uses as much as digits as its factorization.

1054521550425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14479 (or 14091 counting only the distinct ones).

The product of its (nonzero) digits is 200000, while the sum is 39.

The spelling of 1054521550425 in words is "one trillion, fifty-four billion, five hundred twenty-one million, five hundred fifty thousand, four hundred twenty-five".