55367749 has 4 divisors (see below), whose sum is σ = 55875820. Its totient is φ = 54859680.

The previous prime is 55367713. The next prime is 55367771. The reversal of 55367749 is 94776355.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 94776355 = 5 ⋅18955271.

It can be written as a sum of positive squares in 2 ways, for example, as 33558849 + 21808900 = 5793^2 + 4670^2 .

It is a cyclic number.

It is not a de Polignac number, because 55367749 - 2⁷ = 55367621 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55367699 and 55367708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55367779) 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, 253872 + ... + 254089.

It is an arithmetic number, because the mean of its divisors is an integer number (13968955).

Almost surely, 2^55367749 is an apocalyptic number.

It is an amenable number.

55367749 is a deficient number, since it is larger than the sum of its proper divisors (508071).

55367749 is a wasteful number, since it uses less digits than its factorization.

55367749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 508070.

The product of its digits is 793800, while the sum is 46.

The square root of 55367749 is about 7440.9508129002. The cubic root of 55367749 is about 381.1409590877.

The spelling of 55367749 in words is "fifty-five million, three hundred sixty-seven thousand, seven hundred forty-nine".