55169949 has 8 divisors (see below), whose sum is σ = 74247840. Its totient is φ = 36436016.

The previous prime is 55169941. The next prime is 55169951. The reversal of 55169949 is 94996155.

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

It is a cyclic number.

It is not a de Polignac number, because 55169949 - 2³ = 55169941 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 55169898 and 55169907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55169941) 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, 85614 + ... + 86255.

It is an arithmetic number, because the mean of its divisors is an integer number (9280980).

Almost surely, 2^55169949 is an apocalyptic number.

It is an amenable number.

55169949 is a deficient number, since it is larger than the sum of its proper divisors (19077891).

55169949 is a wasteful number, since it uses less digits than its factorization.

55169949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171979.

The product of its digits is 437400, while the sum is 48.

The square root of 55169949 is about 7427.6476087655. The cubic root of 55169949 is about 380.6865451155.

It can be divided in two parts, 551 and 69949, that added together give a triangular number (70500 = T₃₇₅).

The spelling of 55169949 in words is "fifty-five million, one hundred sixty-nine thousand, nine hundred forty-nine".