2449525860 has 120 divisors (see below), whose sum is σ = 7752834936. Its totient is φ = 647377920.

The previous prime is 2449525849. The next prime is 2449525867. The reversal of 2449525860 is 685259442.

2449525860 is a `hidden beast` number, since 2 + 4 + 49 + 525 + 86 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 115476516 + 2334049344 = 10746^2 + 48312^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2449525867) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 176370 + ... + 189750.

Almost surely, 2^2449525860 is an apocalyptic number.

2449525860 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 2449525860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3876417468).

2449525860 is an abundant number, since it is smaller than the sum of its proper divisors (5303309076).

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

2449525860 is a wasteful number, since it uses less digits than its factorization.

2449525860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13515 (or 13504 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 45.

The square root of 2449525860 is about 49492.6849140355. The cubic root of 2449525860 is about 1348.0127799215.

The spelling of 2449525860 in words is "two billion, four hundred forty-nine million, five hundred twenty-five thousand, eight hundred sixty".