25335148212 has 144 divisors (see below), whose sum is σ = 74558195712. Its totient is φ = 7168573440.

The previous prime is 25335148211. The next prime is 25335148253. The reversal of 25335148212 is 21284153352.

25335148212 is a `hidden beast` number, since 2 + 53 + 3 + 514 + 82 + 12 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25335148211) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 840148 + ... + 869780.

It is an arithmetic number, because the mean of its divisors is an integer number (517765248).

Almost surely, 2^25335148212 is an apocalyptic number.

25335148212 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 25335148212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37279097856).

25335148212 is an abundant number, since it is smaller than the sum of its proper divisors (49223047500).

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

25335148212 is a wasteful number, since it uses less digits than its factorization.

25335148212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29798 (or 29793 counting only the distinct ones).

The product of its digits is 57600, while the sum is 36.

The spelling of 25335148212 in words is "twenty-five billion, three hundred thirty-five million, one hundred forty-eight thousand, two hundred twelve".