25513632030 has 32 divisors (see below), whose sum is σ = 62095154688. Its totient is φ = 6707808800.

The previous prime is 25513632029. The next prime is 25513632037. The reversal of 25513632030 is 3023631552.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25513632037) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5986986 + ... + 5991245.

It is an arithmetic number, because the mean of its divisors is an integer number (1940473584).

Almost surely, 2^25513632030 is an apocalyptic number.

25513632030 is an abundant number, since it is smaller than the sum of its proper divisors (36581522658).

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

25513632030 is a wasteful number, since it uses less digits than its factorization.

25513632030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11978312.

The product of its (nonzero) digits is 16200, while the sum is 30.

The spelling of 25513632030 in words is "twenty-five billion, five hundred thirteen million, six hundred thirty-two thousand, thirty".