654121425 has 24 divisors (see below), whose sum is σ = 1082655904. Its totient is φ = 348485760.

The previous prime is 654121411. The next prime is 654121453. The reversal of 654121425 is 524121456.

It is not a de Polignac number, because 654121425 - 2¹⁶ = 654055889 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 654121392 and 654121401.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 73254 + ... + 81696.

Almost surely, 2^654121425 is an apocalyptic number.

It is an amenable number.

654121425 is a deficient number, since it is larger than the sum of its proper divisors (428534479).

654121425 is a wasteful number, since it uses less digits than its factorization.

654121425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9489 (or 9484 counting only the distinct ones).

The product of its digits is 9600, while the sum is 30.

The square root of 654121425 is about 25575.7976415204. The cubic root of 654121425 is about 868.0660901103.

It can be divided in two parts, 6541 and 21425, that added together give a triangular number (27966 = T₂₃₆).

The spelling of 654121425 in words is "six hundred fifty-four million, one hundred twenty-one thousand, four hundred twenty-five".