55770719 has 4 divisors (see below), whose sum is σ = 58706040. Its totient is φ = 52835400.

The previous prime is 55770707. The next prime is 55770731. The reversal of 55770719 is 91707755.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (55770707) and next prime (55770731).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55770719 is a prime.

It is a super-2 number, since 2×55770719² = 6220746195553922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55770749) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1467632 + ... + 1467669.

It is an arithmetic number, because the mean of its divisors is an integer number (14676510).

Almost surely, 2^55770719 is an apocalyptic number.

55770719 is a deficient number, since it is larger than the sum of its proper divisors (2935321).

55770719 is a wasteful number, since it uses less digits than its factorization.

55770719 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2935320.

The product of its (nonzero) digits is 77175, while the sum is 41.

The square root of 55770719 is about 7467.9795795114. The cubic root of 55770719 is about 382.0633809291.

The spelling of 55770719 in words is "fifty-five million, seven hundred seventy thousand, seven hundred nineteen".