155253294547 has 4 divisors (see below), whose sum is σ = 167195855680. Its totient is φ = 143310733416.

The previous prime is 155253294503. The next prime is 155253294557. The reversal of 155253294547 is 745492352551.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 155253294547 - 2²³ = 155244905939 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 155253294494 and 155253294503.

It is not an unprimeable number, because it can be changed into a prime (155253294557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5971280547 + ... + 5971280572.

It is an arithmetic number, because the mean of its divisors is an integer number (41798963920).

Almost surely, 2^155253294547 is an apocalyptic number.

155253294547 is a deficient number, since it is larger than the sum of its proper divisors (11942561133).

155253294547 is a wasteful number, since it uses less digits than its factorization.

155253294547 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11942561132.

The product of its digits is 7560000, while the sum is 52.

The spelling of 155253294547 in words is "one hundred fifty-five billion, two hundred fifty-three million, two hundred ninety-four thousand, five hundred forty-seven".