25470030 has 32 divisors (see below), whose sum is σ = 61696800. Its totient is φ = 6728832.

The previous prime is 25470019. The next prime is 25470031. The reversal of 25470030 is 3007452.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 25469979 and 25470006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25470031) 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, 625 + ... + 7164.

It is an arithmetic number, because the mean of its divisors is an integer number (1928025).

Almost surely, 2^25470030 is an apocalyptic number.

25470030 is an abundant number, since it is smaller than the sum of its proper divisors (36226770).

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

25470030 is a wasteful number, since it uses less digits than its factorization.

25470030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7908.

The product of its (nonzero) digits is 840, while the sum is 21.

The square root of 25470030 is about 5046.7841245688. The cubic root of 25470030 is about 294.2229092956. Note that the first 3 decimals are identical.

Adding to 25470030 its reverse (3007452), we get a palindrome (28477482).

The spelling of 25470030 in words is "twenty-five million, four hundred seventy thousand, thirty".