25621152 has 48 divisors (see below), whose sum is σ = 69582240. Its totient is φ = 8244992.

The previous prime is 25621151. The next prime is 25621171. The reversal of 25621152 is 25112652.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (25621151) 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 7 ways as a sum of consecutive naturals, for example, 1818 + ... + 7385.

It is an arithmetic number, because the mean of its divisors is an integer number (1449630).

Almost surely, 2^25621152 is an apocalyptic number.

It is an amenable number.

25621152 is an abundant number, since it is smaller than the sum of its proper divisors (43961088).

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

25621152 is a wasteful number, since it uses less digits than its factorization.

25621152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9245 (or 9237 counting only the distinct ones).

The product of its digits is 1200, while the sum is 24.

The square root of 25621152 is about 5061.7340902106. The cubic root of 25621152 is about 294.8036690395.

The spelling of 25621152 in words is "twenty-five million, six hundred twenty-one thousand, one hundred fifty-two".