1957625 has 8 divisors (see below), whose sum is σ = 2443272. Its totient is φ = 1566000.

The previous prime is 1957621. The next prime is 1957639. The reversal of 1957625 is 5267591.

It can be written as a sum of positive squares in 4 ways, for example, as 33856 + 1923769 = 184^2 + 1387^2 .

It is not a de Polignac number, because 1957625 - 2² = 1957621 is a prime.

It is a d-powerful number, because it can be written as 1 + 9 + 5 + 7⁴ + 6² + 2¹¹ + 5⁹ .

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1957621) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7706 + ... + 7955.

It is an arithmetic number, because the mean of its divisors is an integer number (305409).

2^1957625 is an apocalyptic number.

It is an amenable number.

1957625 is a deficient number, since it is larger than the sum of its proper divisors (485647).

1957625 is an equidigital number, since it uses as much as digits as its factorization.

1957625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15676 (or 15666 counting only the distinct ones).

The product of its digits is 18900, while the sum is 35.

The square root of 1957625 is about 1399.1515286058. The cubic root of 1957625 is about 125.0959263662.

The spelling of 1957625 in words is "one million, nine hundred fifty-seven thousand, six hundred twenty-five".