201625615 has 4 divisors (see below), whose sum is σ = 241950744. Its totient is φ = 161300488.

The previous prime is 201625601. The next prime is 201625639. The reversal of 201625615 is 516526102.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 516526102 = 2 ⋅258263051.

It is a cyclic number.

It is not a de Polignac number, because 201625615 - 2⁵ = 201625583 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20162557 + ... + 20162566.

It is an arithmetic number, because the mean of its divisors is an integer number (60487686).

Almost surely, 2^201625615 is an apocalyptic number.

201625615 is a deficient number, since it is larger than the sum of its proper divisors (40325129).

201625615 is an equidigital number, since it uses as much as digits as its factorization.

201625615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40325128.

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 201625615 is about 14199.4934768815. The cubic root of 201625615 is about 586.3837164659.

The spelling of 201625615 in words is "two hundred one million, six hundred twenty-five thousand, six hundred fifteen".