5256003780 has 72 divisors (see below), whose sum is σ = 15977899392. Its totient is φ = 1398551616.

The previous prime is 5256003773. The next prime is 5256003787. The reversal of 5256003780 is 873006525.

5256003780 is a `hidden beast` number, since 525 + 60 + 0 + 3 + 78 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (5256003773) and next prime (5256003787).

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

It is not an unprimeable number, because it can be changed into a prime (5256003787) by changing a digit.

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, 51807 + ... + 114873.

Almost surely, 2^5256003780 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5256003780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7988949696).

5256003780 is an abundant number, since it is smaller than the sum of its proper divisors (10721895612).

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

5256003780 is a wasteful number, since it uses less digits than its factorization.

5256003780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63545 (or 63540 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The square root of 5256003780 is about 72498.3019111482. The cubic root of 5256003780 is about 1738.6755874935.

The spelling of 5256003780 in words is "five billion, two hundred fifty-six million, three thousand, seven hundred eighty".