55074787 has 8 divisors (see below), whose sum is σ = 59322560. Its totient is φ = 50961960.

The previous prime is 55074769. The next prime is 55074797. The reversal of 55074787 is 78747055.

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 55074787 - 2²³ = 46686179 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is not an unprimeable number, because it can be changed into a prime (55074727) 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, 32889 + ... + 34522.

It is an arithmetic number, because the mean of its divisors is an integer number (7415320).

Almost surely, 2^55074787 is an apocalyptic number.

55074787 is a deficient number, since it is larger than the sum of its proper divisors (4247773).

55074787 is a wasteful number, since it uses less digits than its factorization.

55074787 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67473.

The product of its (nonzero) digits is 274400, while the sum is 43.

The square root of 55074787 is about 7421.2389127423. The cubic root of 55074787 is about 380.4675385563.

The spelling of 55074787 in words is "fifty-five million, seventy-four thousand, seven hundred eighty-seven".