2530489725 has 36 divisors (see below), whose sum is σ = 4549346100. Its totient is φ = 1344545280.

The previous prime is 2530489723. The next prime is 2530489747. The reversal of 2530489725 is 5279840352.

2530489725 is a `hidden beast` number, since 2 + 530 + 4 + 8 + 97 + 25 = 666.

It can be written as a sum of positive squares in 6 ways, for example, as 595457604 + 1935032121 = 24402^2 + 43989^2 .

It is not a de Polignac number, because 2530489725 - 2¹ = 2530489723 is a prime.

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 (2530489723) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 39621 + ... + 81429.

It is an arithmetic number, because the mean of its divisors is an integer number (126370725).

Almost surely, 2^2530489725 is an apocalyptic number.

2530489725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2530489725 is a deficient number, since it is larger than the sum of its proper divisors (2018856375).

2530489725 is a wasteful number, since it uses less digits than its factorization.

2530489725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42094 (or 42086 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 45.

The square root of 2530489725 is about 50303.9732526169. The cubic root of 2530489725 is about 1362.7039853948.

The spelling of 2530489725 in words is "two billion, five hundred thirty million, four hundred eighty-nine thousand, seven hundred twenty-five".