2566051320 has 128 divisors (see below), whose sum is σ = 8808445440. Its totient is φ = 585822720.

The previous prime is 2566051309. The next prime is 2566051321. The reversal of 2566051320 is 231506652.

It is a super-3 number, since 3×2566051320³ (a number of 29 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2566051321) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1076530 + ... + 1078910.

It is an arithmetic number, because the mean of its divisors is an integer number (68815980).

Almost surely, 2^2566051320 is an apocalyptic number.

2566051320 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 2566051320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4404222720).

2566051320 is an abundant number, since it is smaller than the sum of its proper divisors (6242394120).

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

2566051320 is a wasteful number, since it uses less digits than its factorization.

2566051320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3685 (or 3681 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 2566051320 is about 50656.2071221287. The cubic root of 2566051320 is about 1369.0577853745.

Adding to 2566051320 its reverse (231506652), we get a palindrome (2797557972).

The spelling of 2566051320 in words is "two billion, five hundred sixty-six million, fifty-one thousand, three hundred twenty".