55261749 has 8 divisors (see below), whose sum is σ = 73825312. Its totient is φ = 36769680.

The previous prime is 55261721. The next prime is 55261783. The reversal of 55261749 is 94716255.

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

It is not a de Polignac number, because 55261749 - 2¹⁵ = 55228981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55262749) 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, 16042 + ... + 19179.

It is an arithmetic number, because the mean of its divisors is an integer number (9228164).

Almost surely, 2^55261749 is an apocalyptic number.

It is an amenable number.

55261749 is a deficient number, since it is larger than the sum of its proper divisors (18563563).

55261749 is a wasteful number, since it uses less digits than its factorization.

55261749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35747.

The product of its digits is 75600, while the sum is 39.

The square root of 55261749 is about 7433.8246549135. The cubic root of 55261749 is about 380.8975758185.

The spelling of 55261749 in words is "fifty-five million, two hundred sixty-one thousand, seven hundred forty-nine".