25400102 has 32 divisors (see below), whose sum is σ = 47615232. Its totient is φ = 9893664.

The previous prime is 25400083. The next prime is 25400147. The reversal of 25400102 is 20100452.

It is a super-2 number, since 2×25400102² = 1290330363220808, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 11153 + ... + 13235.

It is an arithmetic number, because the mean of its divisors is an integer number (1487976).

Almost surely, 2^25400102 is an apocalyptic number.

25400102 is a deficient number, since it is larger than the sum of its proper divisors (22215130).

25400102 is a wasteful number, since it uses less digits than its factorization.

25400102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2172.

The product of its (nonzero) digits is 80, while the sum is 14.

The square root of 25400102 is about 5039.8513866978. The cubic root of 25400102 is about 293.9533993735.

Adding to 25400102 its reverse (20100452), we get a palindrome (45500554).

The spelling of 25400102 in words is "twenty-five million, four hundred thousand, one hundred two".