55799247 has 16 divisors (see below), whose sum is σ = 85524480. Its totient is φ = 31698912.

The previous prime is 55799239. The next prime is 55799273. The reversal of 55799247 is 74299755.

It is not a de Polignac number, because 55799247 - 2³ = 55799239 is a prime.

It is a super-2 number, since 2×55799247² = 6227111931534018, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 55799196 and 55799205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55799297) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4047 + ... + 11312.

It is an arithmetic number, because the mean of its divisors is an integer number (5345280).

Almost surely, 2^55799247 is an apocalyptic number.

55799247 is a deficient number, since it is larger than the sum of its proper divisors (29725233).

55799247 is a wasteful number, since it uses less digits than its factorization.

55799247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15542.

The product of its digits is 793800, while the sum is 48.

The square root of 55799247 is about 7469.8893566103. The cubic root of 55799247 is about 382.1285145477.

The spelling of 55799247 in words is "fifty-five million, seven hundred ninety-nine thousand, two hundred forty-seven".