4525647840 has 432 divisors, whose sum is σ = 18553691520. Its totient is φ = 1000581120.

The previous prime is 4525647827. The next prime is 4525647857. The reversal of 4525647840 is 487465254.

4525647840 is a `hidden beast` number, since 4 + 5 + 2 + 564 + 7 + 84 + 0 = 666.

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 71 ways as a sum of consecutive naturals, for example, 2186326 + ... + 2188394.

It is an arithmetic number, because the mean of its divisors is an integer number (42948360).

Almost surely, 2^4525647840 is an apocalyptic number.

4525647840 is a gapful number since it is divisible by the number (40) 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 4525647840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9276845760).

4525647840 is an abundant number, since it is smaller than the sum of its proper divisors (14028043680).

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

4525647840 is a wasteful number, since it uses less digits than its factorization.

4525647840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2135 (or 2117 counting only the distinct ones).

The product of its (nonzero) digits is 1075200, while the sum is 45.

The square root of 4525647840 is about 67272.9354198254. The cubic root of 4525647840 is about 1654.0942510017.

It can be divided in two parts, 45256 and 47840, that added together give a triangular number (93096 = T₄₃₁).

The spelling of 4525647840 in words is "four billion, five hundred twenty-five million, six hundred forty-seven thousand, eight hundred forty".