25140450 has 48 divisors (see below), whose sum is σ = 66022560. Its totient is φ = 6309120.

The previous prime is 25140389. The next prime is 25140457. The reversal of 25140450 is 5404152.

It is not an unprimeable number, because it can be changed into a prime (25140457) 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, 2380 + ... + 7479.

It is an arithmetic number, because the mean of its divisors is an integer number (1375470).

Almost surely, 2^25140450 is an apocalyptic number.

25140450 is an abundant number, since it is smaller than the sum of its proper divisors (40882110).

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

25140450 is a wasteful number, since it uses less digits than its factorization.

25140450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9891 (or 9886 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 25140450 is about 5014.0253290146. The cubic root of 25140450 is about 292.9483226468.

The spelling of 25140450 in words is "twenty-five million, one hundred forty thousand, four hundred fifty".