155240054 has 8 divisors (see below), whose sum is σ = 233269608. Its totient is φ = 77483520.

The previous prime is 155240053. The next prime is 155240069. The reversal of 155240054 is 450042551.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155240053) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66827 + ... + 69110.

It is an arithmetic number, because the mean of its divisors is an integer number (29158701).

Almost surely, 2^155240054 is an apocalyptic number.

155240054 is a deficient number, since it is larger than the sum of its proper divisors (78029554).

155240054 is a wasteful number, since it uses less digits than its factorization.

155240054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136510.

The product of its (nonzero) digits is 4000, while the sum is 26.

The square root of 155240054 is about 12459.5366687530. The cubic root of 155240054 is about 537.4457031145.

The spelling of 155240054 in words is "one hundred fifty-five million, two hundred forty thousand, fifty-four".