55767949 has 4 divisors (see below), whose sum is σ = 56439936. Its totient is φ = 55095964.

The previous prime is 55767937. The next prime is 55767953. The reversal of 55767949 is 94976755.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 94976755 = 5 ⋅18995351.

It is a cyclic number.

It is not a de Polignac number, because 55767949 - 2¹¹ = 55765901 is a prime.

It is a super-2 number, since 2×55767949² = 6220128271333202, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55767896 and 55767905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55767979) 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, 335869 + ... + 336034.

It is an arithmetic number, because the mean of its divisors is an integer number (14109984).

Almost surely, 2^55767949 is an apocalyptic number.

It is an amenable number.

55767949 is a deficient number, since it is larger than the sum of its proper divisors (671987).

55767949 is an equidigital number, since it uses as much as digits as its factorization.

55767949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 671986.

The product of its digits is 2381400, while the sum is 52.

The square root of 55767949 is about 7467.7941187475. The cubic root of 55767949 is about 382.0570554289.

The spelling of 55767949 in words is "fifty-five million, seven hundred sixty-seven thousand, nine hundred forty-nine".