55745894 has 4 divisors (see below), whose sum is σ = 83618844. Its totient is φ = 27872946.

The previous prime is 55745891. The next prime is 55745903. The reversal of 55745894 is 49854755.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 49854755 = 5 ⋅9970951.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55745891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13936472 + ... + 13936475.

It is an arithmetic number, because the mean of its divisors is an integer number (20904711).

Almost surely, 2^55745894 is an apocalyptic number.

55745894 is a deficient number, since it is larger than the sum of its proper divisors (27872950).

55745894 is a wasteful number, since it uses less digits than its factorization.

55745894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27872949.

The product of its digits is 1008000, while the sum is 47.

The square root of 55745894 is about 7466.3172983741. The cubic root of 55745894 is about 382.0066837276.

The spelling of 55745894 in words is "fifty-five million, seven hundred forty-five thousand, eight hundred ninety-four".