2525021630 has 32 divisors (see below), whose sum is σ = 4640702976. Its totient is φ = 988932384.

The previous prime is 2525021593. The next prime is 2525021651. The reversal of 2525021630 is 361205252.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2525021630.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 100607 + ... + 123173.

It is an arithmetic number, because the mean of its divisors is an integer number (145021968).

Almost surely, 2^2525021630 is an apocalyptic number.

2525021630 is a deficient number, since it is larger than the sum of its proper divisors (2115681346).

2525021630 is a wasteful number, since it uses less digits than its factorization.

2525021630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22808.

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 2525021630 is about 50249.5933316878. The cubic root of 2525021630 is about 1361.7217290845.

Adding to 2525021630 its reverse (361205252), we get a palindrome (2886226882).

The spelling of 2525021630 in words is "two billion, five hundred twenty-five million, twenty-one thousand, six hundred thirty".