25315430 has 16 divisors (see below), whose sum is σ = 52077600. Its totient is φ = 8679552.

The previous prime is 25315421. The next prime is 25315439. The reversal of 25315430 is 3451352.

It is an interprime number because it is at equal distance from previous prime (25315421) and next prime (25315439).

It is a junction number, because it is equal to n+sod(n) for n = 25315396 and 25315405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25315439) 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, 180755 + ... + 180894.

It is an arithmetic number, because the mean of its divisors is an integer number (3254850).

Almost surely, 2^25315430 is an apocalyptic number.

25315430 is an abundant number, since it is smaller than the sum of its proper divisors (26762170).

25315430 is a wasteful number, since it uses less digits than its factorization.

25315430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 361663.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 25315430 is about 5031.4441266897. Note that the first 3 decimals coincide. The cubic root of 25315430 is about 293.6264016009.

Adding to 25315430 its reverse (3451352), we get a palindrome (28766782).

The spelling of 25315430 in words is "twenty-five million, three hundred fifteen thousand, four hundred thirty".