201625904 has 20 divisors (see below), whose sum is σ = 391274064. Its totient is φ = 100651968.

The previous prime is 201625901. The next prime is 201625937. The reversal of 201625904 is 409526102.

It is a happy number.

201625904 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (201625901) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 614 + ... + 20090.

Almost surely, 2^201625904 is an apocalyptic number.

It is an amenable number.

201625904 is a deficient number, since it is larger than the sum of its proper divisors (189648160).

201625904 is a wasteful number, since it uses less digits than its factorization.

201625904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20132 (or 20126 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 201625904 is about 14199.5036532972. The cubic root of 201625904 is about 586.3839966300.

It can be divided in two parts, 20 and 1625904, that multiplied together give a triangular number (32518080 = T₈₀₆₄).

The spelling of 201625904 in words is "two hundred one million, six hundred twenty-five thousand, nine hundred four".