25213544302542 has 8 divisors (see below), whose sum is σ = 50427088605096. Its totient is φ = 8404514767512.

The previous prime is 25213544302477. The next prime is 25213544302543. The reversal of 25213544302542 is 24520344531252.

It is a sphenic number, since it is the product of 3 distinct primes.

25213544302542 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 25213544302494 and 25213544302503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25213544302543) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2101128691873 + ... + 2101128691884.

It is an arithmetic number, because the mean of its divisors is an integer number (6303386075637).

Almost surely, 2^{25213544302542} is an apocalyptic number.

25213544302542 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

25213544302542 is a wasteful number, since it uses less digits than its factorization.

25213544302542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4202257383762.

The product of its (nonzero) digits is 1152000, while the sum is 42.

Adding to 25213544302542 its reverse (24520344531252), we get a palindrome (49733888833794).

The spelling of 25213544302542 in words is "twenty-five trillion, two hundred thirteen billion, five hundred forty-four million, three hundred two thousand, five hundred forty-two".