155005542 has 16 divisors (see below), whose sum is σ = 344456880. Its totient is φ = 51668496.

The previous prime is 155005531. The next prime is 155005547. The reversal of 155005542 is 245500551.

155005542 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155005547) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1435183 + ... + 1435290.

It is an arithmetic number, because the mean of its divisors is an integer number (21528555).

Almost surely, 2^155005542 is an apocalyptic number.

155005542 is an abundant number, since it is smaller than the sum of its proper divisors (189451338).

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

155005542 is a wasteful number, since it uses less digits than its factorization.

155005542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2870484 (or 2870478 counting only the distinct ones).

The product of its (nonzero) digits is 5000, while the sum is 27.

The square root of 155005542 is about 12450.1221680753. The cubic root of 155005542 is about 537.1749375430.

The spelling of 155005542 in words is "one hundred fifty-five million, five thousand, five hundred forty-two".