25930557 has 16 divisors (see below), whose sum is σ = 38494080. Its totient is φ = 17251776.

The previous prime is 25930543. The next prime is 25930571. The reversal of 25930557 is 75503952.

It is an interprime number because it is at equal distance from previous prime (25930543) and next prime (25930571).

It is not a de Polignac number, because 25930557 - 2¹¹ = 25928509 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25930517) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25888 + ... + 26870.

It is an arithmetic number, because the mean of its divisors is an integer number (2405880).

Almost surely, 2^25930557 is an apocalyptic number.

25930557 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

It is an amenable number.

25930557 is a deficient number, since it is larger than the sum of its proper divisors (12563523).

25930557 is an equidigital number, since it uses as much as digits as its factorization.

25930557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1969 (or 1963 counting only the distinct ones).

The product of its (nonzero) digits is 47250, while the sum is 36.

The square root of 25930557 is about 5092.2055143130. The cubic root of 25930557 is about 295.9856221711.

The spelling of 25930557 in words is "twenty-five million, nine hundred thirty thousand, five hundred fifty-seven".