25451712 has 224 divisors, whose sum is σ = 88757760. Its totient is φ = 7050240.

The previous prime is 25451711. The next prime is 25451717. The reversal of 25451712 is 21715452.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25451711) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 247053 + ... + 247155.

It is an arithmetic number, because the mean of its divisors is an integer number (396240).

Almost surely, 2^25451712 is an apocalyptic number.

25451712 is a gapful number since it is divisible by the number (22) 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 25451712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44378880).

25451712 is an abundant number, since it is smaller than the sum of its proper divisors (63306048).

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

25451712 is a wasteful number, since it uses less digits than its factorization.

25451712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148 (or 132 counting only the distinct ones).

The product of its digits is 2800, while the sum is 27.

The square root of 25451712 is about 5044.9689790919. The cubic root of 25451712 is about 294.1523575160.

The spelling of 25451712 in words is "twenty-five million, four hundred fifty-one thousand, seven hundred twelve".