25377480 has 96 divisors (see below), whose sum is σ = 83187000. Its totient is φ = 6709248.

The previous prime is 25377479. The next prime is 25377491. The reversal of 25377480 is 8477352.

It can be written as a sum of positive squares in 4 ways, for example, as 19236996 + 6140484 = 4386^2 + 2478^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 56296 + ... + 56744.

Almost surely, 2^25377480 is an apocalyptic number.

25377480 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 25377480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41593500).

25377480 is an abundant number, since it is smaller than the sum of its proper divisors (57809520).

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

25377480 is a wasteful number, since it uses less digits than its factorization.

25377480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 623 (or 616 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 36.

The square root of 25377480 is about 5037.6065745550. The cubic root of 25377480 is about 293.8661059058.

The spelling of 25377480 in words is "twenty-five million, three hundred seventy-seven thousand, four hundred eighty".