155200542 has 48 divisors (see below), whose sum is σ = 366514560. Its totient is φ = 43675632.

The previous prime is 155200541. The next prime is 155200543. The reversal of 155200542 is 245002551.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (155200541) and next prime (155200543).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155200541) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15759 + ... + 23637.

It is an arithmetic number, because the mean of its divisors is an integer number (7635720).

Almost surely, 2^155200542 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 155200542, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (183257280).

155200542 is an abundant number, since it is smaller than the sum of its proper divisors (211314018).

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

155200542 is a wasteful number, since it uses less digits than its factorization.

155200542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7965 (or 7958 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 24.

The square root of 155200542 is about 12457.9509551130. The cubic root of 155200542 is about 537.4001020041.

The spelling of 155200542 in words is "one hundred fifty-five million, two hundred thousand, five hundred forty-two".