155055400533 has 24 divisors (see below), whose sum is σ = 245557540800. Its totient is φ = 93500732160.

The previous prime is 155055400529. The next prime is 155055400547. The reversal of 155055400533 is 335004550551.

155055400533 is a `hidden beast` number, since 1 + 5 + 50 + 554 + 0 + 0 + 53 + 3 = 666.

It is not a de Polignac number, because 155055400533 - 2² = 155055400529 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155055400033) 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, 3915516 + ... + 3954917.

It is an arithmetic number, because the mean of its divisors is an integer number (10231564200).

Almost surely, 2^155055400533 is an apocalyptic number.

It is an amenable number.

155055400533 is a deficient number, since it is larger than the sum of its proper divisors (90502140267).

155055400533 is a wasteful number, since it uses less digits than its factorization.

155055400533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7870649 (or 7870646 counting only the distinct ones).

The product of its (nonzero) digits is 112500, while the sum is 36.

The spelling of 155055400533 in words is "one hundred fifty-five billion, fifty-five million, four hundred thousand, five hundred thirty-three".