25533550152 has 96 divisors (see below), whose sum is σ = 76034350080. Its totient is φ = 7676484480.

The previous prime is 25533550139. The next prime is 25533550169. The reversal of 25533550152 is 25105533552.

25533550152 is a `hidden beast` number, since 2 + 5 + 53 + 3 + 550 + 1 + 52 = 666.

It is a super-3 number, since 3×25533550152³ (a number of 32 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26343 + ... + 227510.

It is an arithmetic number, because the mean of its divisors is an integer number (792024480).

Almost surely, 2^25533550152 is an apocalyptic number.

25533550152 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 25533550152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38017175040).

25533550152 is an abundant number, since it is smaller than the sum of its proper divisors (50500799928).

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

25533550152 is a wasteful number, since it uses less digits than its factorization.

25533550152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254003 (or 253996 counting only the distinct ones).

The product of its (nonzero) digits is 112500, while the sum is 36.

The spelling of 25533550152 in words is "twenty-five billion, five hundred thirty-three million, five hundred fifty thousand, one hundred fifty-two".