1998067025 has 24 divisors (see below), whose sum is σ = 2617046784. Its totient is φ = 1510891200.

The previous prime is 1998067003. The next prime is 1998067033. The reversal of 1998067025 is 5207608991.

It is not a de Polignac number, because 1998067025 - 2¹² = 1998062929 is a prime.

It is a super-3 number, since 3×1998067025³ (a number of 29 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3347 + ... + 63303.

It is an arithmetic number, because the mean of its divisors is an integer number (109043616).

Almost surely, 2^1998067025 is an apocalyptic number.

It is an amenable number.

1998067025 is a deficient number, since it is larger than the sum of its proper divisors (618979759).

1998067025 is a wasteful number, since it uses less digits than its factorization.

1998067025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60041 (or 60036 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 47.

The square root of 1998067025 is about 44699.7430082098. The cubic root of 1998067025 is about 1259.5150197438.

The spelling of 1998067025 in words is "one billion, nine hundred ninety-eight million, sixty-seven thousand, twenty-five".