25701031 has 2 divisors, whose sum is σ = 25701032. Its totient is φ = 25701030.

The previous prime is 25701019. The next prime is 25701043. The reversal of 25701031 is 13010752.

It is a balanced prime because it is at equal distance from previous prime (25701019) and next prime (25701043).

It is a cyclic number.

It is not a de Polignac number, because 25701031 - 2¹³ = 25692839 is a prime.

It is a super-2 number, since 2×25701031² = 1321085988925922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25701061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12850515 + 12850516.

It is an arithmetic number, because the mean of its divisors is an integer number (12850516).

Almost surely, 2^25701031 is an apocalyptic number.

25701031 is a deficient number, since it is larger than the sum of its proper divisors (1).

25701031 is an equidigital number, since it uses as much as digits as its factorization.

25701031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 210, while the sum is 19.

The square root of 25701031 is about 5069.6184274559. The cubic root of 25701031 is about 295.1097207488.

Adding to 25701031 its reverse (13010752), we get a palindrome (38711783).

The spelling of 25701031 in words is "twenty-five million, seven hundred one thousand, thirty-one".