25013430 has 48 divisors (see below), whose sum is σ = 70040880. Its totient is φ = 6156864.

The previous prime is 25013423. The next prime is 25013431. The reversal of 25013430 is 3431052.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25013431) 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, 9520 + ... + 11859.

It is an arithmetic number, because the mean of its divisors is an integer number (1459185).

Almost surely, 2^25013430 is an apocalyptic number.

25013430 is an abundant number, since it is smaller than the sum of its proper divisors (45027450).

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

25013430 is a wasteful number, since it uses less digits than its factorization.

25013430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21405 (or 21402 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 25013430 is about 5001.3428196835. The cubic root of 25013430 is about 292.4541238592.

Adding to 25013430 its reverse (3431052), we get a palindrome (28444482).

The spelling of 25013430 in words is "twenty-five million, thirteen thousand, four hundred thirty".