201261625 has 8 divisors (see below), whose sum is σ = 251174664. Its totient is φ = 161009200.

The previous prime is 201261607. The next prime is 201261647. The reversal of 201261625 is 526162102.

It can be written as a sum of positive squares in 4 ways, for example, as 19254544 + 182007081 = 4388^2 + 13491^2 .

It is not a de Polignac number, because 201261625 - 2¹⁵ = 201228857 is a prime.

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 201261625.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 804922 + ... + 805171.

It is an arithmetic number, because the mean of its divisors is an integer number (31396833).

Almost surely, 2^201261625 is an apocalyptic number.

201261625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

201261625 is a deficient number, since it is larger than the sum of its proper divisors (49913039).

201261625 is an equidigital number, since it uses as much as digits as its factorization.

201261625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1610108 (or 1610098 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 201261625 is about 14186.6706806072. The cubic root of 201261625 is about 586.0306423190.

The spelling of 201261625 in words is "two hundred one million, two hundred sixty-one thousand, six hundred twenty-five".