55894431 has 8 divisors (see below), whose sum is σ = 74916864. Its totient is φ = 37067480.

The previous prime is 55894427. The next prime is 55894463. The reversal of 55894431 is 13449855.

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

It is a cyclic number.

It is not a de Polignac number, because 55894431 - 2² = 55894427 is a prime.

It is a super-2 number, since 2×55894431² = 6248374833627522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 55894431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55894411) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48201 + ... + 49346.

It is an arithmetic number, because the mean of its divisors is an integer number (9364608).

Almost surely, 2^55894431 is an apocalyptic number.

55894431 is a deficient number, since it is larger than the sum of its proper divisors (19022433).

55894431 is a wasteful number, since it uses less digits than its factorization.

55894431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97741.

The product of its digits is 86400, while the sum is 39.

The square root of 55894431 is about 7476.2578205945. The cubic root of 55894431 is about 382.3456731432.

The spelling of 55894431 in words is "fifty-five million, eight hundred ninety-four thousand, four hundred thirty-one".