25545654552 has 96 divisors (see below), whose sum is σ = 72095310000. Its totient is φ = 7531856640.

The previous prime is 25545654551. The next prime is 25545654557.

It is a happy number.

25545654552 is nontrivially palindromic in base 10.

It is a super-3 number, since 3×25545654552³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25545654551) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11427 + ... + 226322.

Almost surely, 2^25545654552 is an apocalyptic number.

25545654552 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25545654552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36047655000).

25545654552 is an abundant number, since it is smaller than the sum of its proper divisors (46549655448).

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

25545654552 is a wasteful number, since it uses less digits than its factorization.

25545654552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237817 (or 237802 counting only the distinct ones).

The product of its digits is 6000000, while the sum is 48.

The spelling of 25545654552 in words is "twenty-five billion, five hundred forty-five million, six hundred fifty-four thousand, five hundred fifty-two".