255425304215542 has 4 divisors (see below), whose sum is σ = 383137956323316. Its totient is φ = 127712652107770.

The previous prime is 255425304215537. The next prime is 255425304215569. The reversal of 255425304215542 is 245512403524552.

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

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, 63856326053884 + ... + 63856326053887.

It is an arithmetic number, because the mean of its divisors is an integer number (95784489080829).

Almost surely, 2^{255425304215542} is an apocalyptic number.

255425304215542 is a deficient number, since it is larger than the sum of its proper divisors (127712652107774).

255425304215542 is a wasteful number, since it uses less digits than its factorization.

255425304215542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127712652107773.

The product of its (nonzero) digits is 9600000, while the sum is 49.

The spelling of 255425304215542 in words is "two hundred fifty-five trillion, four hundred twenty-five billion, three hundred four million, two hundred fifteen thousand, five hundred forty-two".