25480620 has 144 divisors (see below), whose sum is σ = 89395488. Its totient is φ = 5806080.

The previous prime is 25480613. The next prime is 25480633. The reversal of 25480620 is 2608452.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 33282 + ... + 34038.

It is an arithmetic number, because the mean of its divisors is an integer number (620802).

Almost surely, 2^25480620 is an apocalyptic number.

25480620 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 25480620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44697744).

25480620 is an abundant number, since it is smaller than the sum of its proper divisors (63914868).

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

25480620 is a wasteful number, since it uses less digits than its factorization.

25480620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 800 (or 795 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 25480620 is about 5047.8331985120. The cubic root of 25480620 is about 294.2636812522.

The spelling of 25480620 in words is "twenty-five million, four hundred eighty thousand, six hundred twenty".