155425612636050 has 48 divisors (see below), whose sum is σ = 385480109360640. Its totient is φ = 41444185947840.

The previous prime is 155425612636033. The next prime is 155425612636079. The reversal of 155425612636050 is 50636216524551.

It is a junction number, because it is equal to n+sod(n) for n = 155425612635984 and 155425612636002.

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, 30691417 + ... + 35395116.

It is an arithmetic number, because the mean of its divisors is an integer number (8030835611680).

Almost surely, 2^{155425612636050} is an apocalyptic number.

155425612636050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

155425612636050 is an abundant number, since it is smaller than the sum of its proper divisors (230054496724590).

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

155425612636050 is a wasteful number, since it uses less digits than its factorization.

155425612636050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66102227 (or 66102222 counting only the distinct ones).

The product of its (nonzero) digits is 6480000, while the sum is 51.

The spelling of 155425612636050 in words is "one hundred fifty-five trillion, four hundred twenty-five billion, six hundred twelve million, six hundred thirty-six thousand, fifty".