55069751 has 8 divisors (see below), whose sum is σ = 62688384. Its totient is φ = 47886520.

The previous prime is 55069741. The next prime is 55069769. The reversal of 55069751 is 15796055.

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

It is a de Polignac number, because none of the positive numbers 2^k-55069751 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55069711) 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, 108581 + ... + 109086.

It is an arithmetic number, because the mean of its divisors is an integer number (7836048).

Almost surely, 2^55069751 is an apocalyptic number.

55069751 is a deficient number, since it is larger than the sum of its proper divisors (7618633).

55069751 is a wasteful number, since it uses less digits than its factorization.

55069751 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217701.

The product of its (nonzero) digits is 47250, while the sum is 38.

The square root of 55069751 is about 7420.8996085380. The cubic root of 55069751 is about 380.4559416409.

The spelling of 55069751 in words is "fifty-five million, sixty-nine thousand, seven hundred fifty-one".