1900025 has 6 divisors (see below), whose sum is σ = 2356062. Its totient is φ = 1520000.

The previous prime is 1900009. The next prime is 1900037. The reversal of 1900025 is 5200091.

It can be written as a sum of positive squares in 3 ways, for example, as 241081 + 1658944 = 491^2 + 1288^2 .

It is not a de Polignac number, because 1900025 - 2⁴ = 1900009 is a prime.

It is a super-2 number, since 2×1900025² = 7220190001250, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1899976 and 1900012.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 37976 + ... + 38025.

It is an arithmetic number, because the mean of its divisors is an integer number (392677).

2^1900025 is an apocalyptic number.

It is an amenable number.

1900025 is a deficient number, since it is larger than the sum of its proper divisors (456037).

1900025 is an equidigital number, since it uses as much as digits as its factorization.

1900025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76011 (or 76006 counting only the distinct ones).

The product of its (nonzero) digits is 90, while the sum is 17.

The square root of 1900025 is about 1378.4139436323. The cubic root of 1900025 is about 123.8567761897.

The spelling of 1900025 in words is "one million, nine hundred thousand, twenty-five".