25201404512 has 48 divisors (see below), whose sum is σ = 51070279680. Its totient is φ = 12235402368.

The previous prime is 25201404511. The next prime is 25201404539. The reversal of 25201404512 is 21540410252.

It is a super-2 number, since 2×25201404512² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25201404511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 125039 + ... + 256977.

It is an arithmetic number, because the mean of its divisors is an integer number (1063964160).

Almost surely, 2^25201404512 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25201404512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25535139840).

25201404512 is an abundant number, since it is smaller than the sum of its proper divisors (25868875168).

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

25201404512 is a wasteful number, since it uses less digits than its factorization.

25201404512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132123 (or 132115 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 26.

Adding to 25201404512 its reverse (21540410252), we get a palindrome (46741814764).

The spelling of 25201404512 in words is "twenty-five billion, two hundred one million, four hundred four thousand, five hundred twelve".