55403250415 has 4 divisors (see below), whose sum is σ = 66483900504. Its totient is φ = 44322600328.

The previous prime is 55403250407. The next prime is 55403250433. The reversal of 55403250415 is 51405230455.

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 55403250415 - 2³ = 55403250407 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5540325037 + ... + 5540325046.

It is an arithmetic number, because the mean of its divisors is an integer number (16620975126).

Almost surely, 2^55403250415 is an apocalyptic number.

55403250415 is a deficient number, since it is larger than the sum of its proper divisors (11080650089).

55403250415 is a wasteful number, since it uses less digits than its factorization.

55403250415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11080650088.

The product of its (nonzero) digits is 60000, while the sum is 34.

The spelling of 55403250415 in words is "fifty-five billion, four hundred three million, two hundred fifty thousand, four hundred fifteen".