155880463 has 4 divisors (see below), whose sum is σ = 165049920. Its totient is φ = 146711008.

The previous prime is 155880457. The next prime is 155880479. The reversal of 155880463 is 364088551.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 364088551 = 23 ⋅15829937.

It is a cyclic number.

It is not a de Polignac number, because 155880463 - 2⁹ = 155879951 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155880443) 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, 4584703 + ... + 4584736.

It is an arithmetic number, because the mean of its divisors is an integer number (41262480).

Almost surely, 2^155880463 is an apocalyptic number.

155880463 is a deficient number, since it is larger than the sum of its proper divisors (9169457).

155880463 is an equidigital number, since it uses as much as digits as its factorization.

155880463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9169456.

The product of its (nonzero) digits is 115200, while the sum is 40.

The square root of 155880463 is about 12485.2097699638. The cubic root of 155880463 is about 538.1837275511.

The spelling of 155880463 in words is "one hundred fifty-five million, eight hundred eighty thousand, four hundred sixty-three".