25048821 has 32 divisors (see below), whose sum is σ = 40821760. Its totient is φ = 13343616.

The previous prime is 25048811. The next prime is 25048853. The reversal of 25048821 is 12884052.

It is not a de Polignac number, because 25048821 - 2⁵ = 25048789 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25048811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 26265 + ... + 27201.

It is an arithmetic number, because the mean of its divisors is an integer number (1275680).

Almost surely, 2^25048821 is an apocalyptic number.

25048821 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

25048821 is a deficient number, since it is larger than the sum of its proper divisors (15772939).

25048821 is a wasteful number, since it uses less digits than its factorization.

25048821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1033.

The product of its (nonzero) digits is 5120, while the sum is 30.

The square root of 25048821 is about 5004.8797188344. The cubic root of 25048821 is about 292.5919880157.

It can be divided in two parts, 2504 and 8821, that added together give a triangular number (11325 = T₁₅₀).

The spelling of 25048821 in words is "twenty-five million, forty-eight thousand, eight hundred twenty-one".