55053387 has 12 divisors (see below), whose sum is σ = 79999920. Its totient is φ = 36481488.

The previous prime is 55053377. The next prime is 55053391. The reversal of 55053387 is 78335055.

It is not a de Polignac number, because 55053387 - 2¹⁶ = 54987851 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55053307) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16812 + ... + 19817.

It is an arithmetic number, because the mean of its divisors is an integer number (6666660).

Almost surely, 2^55053387 is an apocalyptic number.

55053387 is a deficient number, since it is larger than the sum of its proper divisors (24946533).

55053387 is a wasteful number, since it uses less digits than its factorization.

55053387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36802 (or 36799 counting only the distinct ones).

The product of its (nonzero) digits is 63000, while the sum is 36.

The square root of 55053387 is about 7419.7969648771. The cubic root of 55053387 is about 380.4182536926.

The spelling of 55053387 in words is "fifty-five million, fifty-three thousand, three hundred eighty-seven".