25214780 has 48 divisors (see below), whose sum is σ = 55566336. Its totient is φ = 9599040.

The previous prime is 25214773. The next prime is 25214807. The reversal of 25214780 is 8741252.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41237 + ... + 41843.

It is an arithmetic number, because the mean of its divisors is an integer number (1157632).

Almost surely, 2^25214780 is an apocalyptic number.

25214780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25214780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27783168).

25214780 is an abundant number, since it is smaller than the sum of its proper divisors (30351556).

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

25214780 is a wasteful number, since it uses less digits than its factorization.

25214780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 714 (or 712 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 29.

The square root of 25214780 is about 5021.4320666519. The cubic root of 25214780 is about 293.2367479301.

The spelling of 25214780 in words is "twenty-five million, two hundred fourteen thousand, seven hundred eighty".