2497655520 has 192 divisors, whose sum is σ = 8797904640. Its totient is φ = 661768704.

The previous prime is 2497655513. The next prime is 2497655543. The reversal of 2497655520 is 255567942.

2497655520 is a `hidden beast` number, since 2 + 4 + 9 + 76 + 55 + 520 = 666.

2497655520 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 702387 + ... + 705933.

It is an arithmetic number, because the mean of its divisors is an integer number (45822420).

Almost surely, 2^2497655520 is an apocalyptic number.

2497655520 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 2497655520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4398952320).

2497655520 is an abundant number, since it is smaller than the sum of its proper divisors (6300249120).

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

2497655520 is a wasteful number, since it uses less digits than its factorization.

2497655520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3734 (or 3720 counting only the distinct ones).

The product of its (nonzero) digits is 756000, while the sum is 45.

The square root of 2497655520 is about 49976.5497008347. The cubic root of 2497655520 is about 1356.7844157516.

The spelling of 2497655520 in words is "two billion, four hundred ninety-seven million, six hundred fifty-five thousand, five hundred twenty".