25180028 has 12 divisors (see below), whose sum is σ = 44101512. Its totient is φ = 12579600.

The previous prime is 25180021. The next prime is 25180031. The reversal of 25180028 is 82008152.

It is a hoax number, since the sum of its digits (26) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 25179979 and 25180006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25180021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5978 + ... + 9278.

It is an arithmetic number, because the mean of its divisors is an integer number (3675126).

Almost surely, 2^25180028 is an apocalyptic number.

It is an amenable number.

25180028 is a deficient number, since it is larger than the sum of its proper divisors (18921484).

25180028 is a wasteful number, since it uses less digits than its factorization.

25180028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5212 (or 5210 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 26.

The square root of 25180028 is about 5017.9705060911. The cubic root of 25180028 is about 293.1019691914.

The spelling of 25180028 in words is "twenty-five million, one hundred eighty thousand, twenty-eight".