671554625 has 32 divisors (see below), whose sum is σ = 983763456. Its totient is φ = 448027200.

The previous prime is 671554619. The next prime is 671554649. The reversal of 671554625 is 526455176.

It is not a de Polignac number, because 671554625 - 2⁶ = 671554561 is a prime.

It is a super-2 number, since 2×671554625² = 901971228717781250, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22004 + ... + 42746.

It is an arithmetic number, because the mean of its divisors is an integer number (30742608).

Almost surely, 2^671554625 is an apocalyptic number.

It is an amenable number.

671554625 is a deficient number, since it is larger than the sum of its proper divisors (312208831).

671554625 is a wasteful number, since it uses less digits than its factorization.

671554625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20802 (or 20792 counting only the distinct ones).

The product of its digits is 252000, while the sum is 41.

The square root of 671554625 is about 25914.3710130113. The cubic root of 671554625 is about 875.7102804174.

The spelling of 671554625 in words is "six hundred seventy-one million, five hundred fifty-four thousand, six hundred twenty-five".