25081434 has 48 divisors (see below), whose sum is σ = 64843200. Its totient is φ = 7165368.

The previous prime is 25081421. The next prime is 25081439. The reversal of 25081434 is 43418052.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 25081398 and 25081407.

It is not an unprimeable number, because it can be changed into a prime (25081439) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2094 + ... + 7385.

It is an arithmetic number, because the mean of its divisors is an integer number (1350900).

Almost surely, 2^25081434 is an apocalyptic number.

25081434 is an abundant number, since it is smaller than the sum of its proper divisors (39761766).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25081434 is a wasteful number, since it uses less digits than its factorization.

25081434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9504 (or 9491 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 25081434 is about 5008.1367792823. The cubic root of 25081434 is about 292.7189156691.

Adding to 25081434 its reverse (43418052), we get a palindrome (68499486).

The spelling of 25081434 in words is "twenty-five million, eighty-one thousand, four hundred thirty-four".