1951825 has 12 divisors (see below), whose sum is σ = 2447388. Its totient is φ = 1544000.

The previous prime is 1951823. The next prime is 1951837. The reversal of 1951825 is 5281591.

It can be written as a sum of positive squares in 6 ways, for example, as 25281 + 1926544 = 159^2 + 1388^2 .

It is not a de Polignac number, because 1951825 - 2¹ = 1951823 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1951823) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2139 + ... + 2911.

It is an arithmetic number, because the mean of its divisors is an integer number (203949).

2^1951825 is an apocalyptic number.

It is an amenable number.

1951825 is a deficient number, since it is larger than the sum of its proper divisors (495563).

1951825 is a wasteful number, since it uses less digits than its factorization.

1951825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 884 (or 879 counting only the distinct ones).

The product of its digits is 3600, while the sum is 31.

The square root of 1951825 is about 1397.0773063793. The cubic root of 1951825 is about 124.9722605113.

The spelling of 1951825 in words is "one million, nine hundred fifty-one thousand, eight hundred twenty-five".