25761450 has 96 divisors (see below), whose sum is σ = 75120192. Its totient is φ = 5760000.

The previous prime is 25761391. The next prime is 25761451. The reversal of 25761450 is 5416752.

It is a super-2 number, since 2×25761450² = 1327304612205000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (25761451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 20850 + ... + 22050.

It is an arithmetic number, because the mean of its divisors is an integer number (782502).

Almost surely, 2^25761450 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25761450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37560096).

25761450 is an abundant number, since it is smaller than the sum of its proper divisors (49358742).

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

25761450 is a wasteful number, since it uses less digits than its factorization.

25761450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1240 (or 1235 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 30.

The square root of 25761450 is about 5075.5738591809. The cubic root of 25761450 is about 295.3407916402.

The spelling of 25761450 in words is "twenty-five million, seven hundred sixty-one thousand, four hundred fifty".