425523452135542 has 4 divisors (see below), whose sum is σ = 638285178203316. Its totient is φ = 212761726067770.

The previous prime is 425523452135539. The next prime is 425523452135569. The reversal of 425523452135542 is 245531254325524.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 425523452135542.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106380863033884 + ... + 106380863033887.

It is an arithmetic number, because the mean of its divisors is an integer number (159571294550829).

Almost surely, 2^{425523452135542} is an apocalyptic number.

425523452135542 is a deficient number, since it is larger than the sum of its proper divisors (212761726067774).

425523452135542 is a wasteful number, since it uses less digits than its factorization.

425523452135542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212761726067773.

The product of its digits is 28800000, while the sum is 52.

The spelling of 425523452135542 in words is "four hundred twenty-five trillion, five hundred twenty-three billion, four hundred fifty-two million, one hundred thirty-five thousand, five hundred forty-two".