2187025901 has 2 divisors, whose sum is σ = 2187025902. Its totient is φ = 2187025900.

The previous prime is 2187025873. The next prime is 2187025927. The reversal of 2187025901 is 1095207812.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1156680100 + 1030345801 = 34010^2 + 32099^2 .

It is a cyclic number.

It is not a de Polignac number, because 2187025901 - 2¹⁸ = 2186763757 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2187025961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1093512950 + 1093512951.

It is an arithmetic number, because the mean of its divisors is an integer number (1093512951).

Almost surely, 2^2187025901 is an apocalyptic number.

It is an amenable number.

2187025901 is a deficient number, since it is larger than the sum of its proper divisors (1).

2187025901 is an equidigital number, since it uses as much as digits as its factorization.

2187025901 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10080, while the sum is 35.

The square root of 2187025901 is about 46765.6487285272. The cubic root of 2187025901 is about 1298.0297374960.

The spelling of 2187025901 in words is "two billion, one hundred eighty-seven million, twenty-five thousand, nine hundred one".