1925610901 has 2 divisors, whose sum is σ = 1925610902. Its totient is φ = 1925610900.

The previous prime is 1925610889. The next prime is 1925610919. The reversal of 1925610901 is 1090165291.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1339486801 + 586124100 = 36599^2 + 24210^2 .

It is a cyclic number.

It is not a de Polignac number, because 1925610901 - 2⁷ = 1925610773 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1925610931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 962805450 + 962805451.

It is an arithmetic number, because the mean of its divisors is an integer number (962805451).

Almost surely, 2^1925610901 is an apocalyptic number.

It is an amenable number.

1925610901 is a deficient number, since it is larger than the sum of its proper divisors (1).

1925610901 is an equidigital number, since it uses as much as digits as its factorization.

1925610901 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4860, while the sum is 34.

The square root of 1925610901 is about 43881.7832477214. The cubic root of 1925610901 is about 1244.1025453269.

The spelling of 1925610901 in words is "one billion, nine hundred twenty-five million, six hundred ten thousand, nine hundred one".