25343861 has 8 divisors (see below), whose sum is σ = 26508480. Its totient is φ = 24230316.

The previous prime is 25343827. The next prime is 25343867. The reversal of 25343861 is 16834352.

It is not a de Polignac number, because 25343861 - 2⁶ = 25343797 is a prime.

It is a super-2 number, since 2×25343861² = 1284622580774642, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25343867) 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, 11126 + ... + 13208.

It is an arithmetic number, because the mean of its divisors is an integer number (3313560).

Almost surely, 2^25343861 is an apocalyptic number.

It is an amenable number.

25343861 is a deficient number, since it is larger than the sum of its proper divisors (1164619).

25343861 is an frugal number, since it uses more digits than its factorization.

25343861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2152 (or 2106 counting only the distinct ones).

The product of its digits is 17280, while the sum is 32.

The square root of 25343861 is about 5034.2686658541. The cubic root of 25343861 is about 293.7362814779.

The spelling of 25343861 in words is "twenty-five million, three hundred forty-three thousand, eight hundred sixty-one".