25215084 has 48 divisors (see below), whose sum is σ = 68221440. Its totient is φ = 8038800.

The previous prime is 25215067. The next prime is 25215089. The reversal of 25215084 is 48051252.

It is a happy number.

It is a super-2 number, since 2×25215084² = 1271600922254112, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (25215089) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2592 + ... + 7559.

It is an arithmetic number, because the mean of its divisors is an integer number (1421280).

Almost surely, 2^25215084 is an apocalyptic number.

It is an amenable number.

25215084 is an abundant number, since it is smaller than the sum of its proper divisors (43006356).

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

25215084 is a wasteful number, since it uses less digits than its factorization.

25215084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10187 (or 10179 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 27.

The square root of 25215084 is about 5021.4623368099. The cubic root of 25215084 is about 293.2379263872.

The spelling of 25215084 in words is "twenty-five million, two hundred fifteen thousand, eighty-four".