1925531 has 2 divisors, whose sum is σ = 1925532. Its totient is φ = 1925530.

The previous prime is 1925509. The next prime is 1925533. The reversal of 1925531 is 1355291.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1925531 - 2¹⁴ = 1909147 is a prime.

It is a super-2 number, since 2×1925531² = 7415339263922, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 1925533, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1925531.

It is not a weakly prime, because it can be changed into another prime (1925533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 962765 + 962766.

It is an arithmetic number, because the mean of its divisors is an integer number (962766).

2^1925531 is an apocalyptic number.

1925531 is a deficient number, since it is larger than the sum of its proper divisors (1).

1925531 is an equidigital number, since it uses as much as digits as its factorization.

1925531 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1350, while the sum is 26.

The square root of 1925531 is about 1387.6350384737. The cubic root of 1925531 is about 124.4085337556.

The spelling of 1925531 in words is "one million, nine hundred twenty-five thousand, five hundred thirty-one".