25190464 has 84 divisors (see below), whose sum is σ = 57730644. Its totient is φ = 10862592.

The previous prime is 25190461. The next prime is 25190467. The reversal of 25190464 is 46409152.

It is an interprime number because it is at equal distance from previous prime (25190461) and next prime (25190467).

It can be written as a sum of positive squares in 6 ways, for example, as 984064 + 24206400 = 992^2 + 4920^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25190461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 183804 + ... + 183940.

Almost surely, 2^25190464 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25190464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28865322).

25190464 is an abundant number, since it is smaller than the sum of its proper divisors (32540180).

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

25190464 is a wasteful number, since it uses less digits than its factorization.

25190464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192 (or 169 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 25190464 is about 5019.0102609977. The cubic root of 25190464 is about 293.1424561688.

The spelling of 25190464 in words is "twenty-five million, one hundred ninety thousand, four hundred sixty-four".