25321435030 has 32 divisors (see below), whose sum is σ = 46237402368. Its totient is φ = 9982274400.

The previous prime is 25321435019. The next prime is 25321435031. The reversal of 25321435030 is 3053412352.

It is a super-2 number, since 2×25321435030² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 25321435030.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25321435031) 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, 2780785 + ... + 2789875.

It is an arithmetic number, because the mean of its divisors is an integer number (1444918824).

Almost surely, 2^25321435030 is an apocalyptic number.

25321435030 is a deficient number, since it is larger than the sum of its proper divisors (20915967338).

25321435030 is a wasteful number, since it uses less digits than its factorization.

25321435030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13092.

The product of its (nonzero) digits is 10800, while the sum is 28.

Adding to 25321435030 its reverse (3053412352), we get a palindrome (28374847382).

The spelling of 25321435030 in words is "twenty-five billion, three hundred twenty-one million, four hundred thirty-five thousand, thirty".