55070769 has 16 divisors (see below), whose sum is σ = 83728512. Its totient is φ = 31895808.

The previous prime is 55070767. The next prime is 55070779. The reversal of 55070769 is 96707055.

It is not a de Polignac number, because 55070769 - 2¹ = 55070767 is a prime.

It is a super-2 number, since 2×55070769² = 6065579196502722, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (55070767) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40869 + ... + 42194.

It is an arithmetic number, because the mean of its divisors is an integer number (5233032).

Almost surely, 2^55070769 is an apocalyptic number.

It is an amenable number.

55070769 is a deficient number, since it is larger than the sum of its proper divisors (28657743).

55070769 is a wasteful number, since it uses less digits than its factorization.

55070769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83096.

The product of its (nonzero) digits is 66150, while the sum is 39.

The square root of 55070769 is about 7420.9681982879. The cubic root of 55070769 is about 380.4582859513.

The spelling of 55070769 in words is "fifty-five million, seventy thousand, seven hundred sixty-nine".