55667249 has 8 divisors (see below), whose sum is σ = 60915360. Its totient is φ = 50450400.

The previous prime is 55667243. The next prime is 55667251. The reversal of 55667249 is 94276655.

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

It is a de Polignac number, because none of the positive numbers 2^k-55667249 is a prime.

It is a super-2 number, since 2×55667249² = 6197685222456002, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (55667243) 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, 4004 + ... + 11285.

It is an arithmetic number, because the mean of its divisors is an integer number (7614420).

Almost surely, 2^55667249 is an apocalyptic number.

It is an amenable number.

55667249 is a deficient number, since it is larger than the sum of its proper divisors (5248111).

55667249 is a wasteful number, since it uses less digits than its factorization.

55667249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15631.

The product of its digits is 453600, while the sum is 44.

The square root of 55667249 is about 7461.0487868664. The cubic root of 55667249 is about 381.8269571593.

The spelling of 55667249 in words is "fifty-five million, six hundred sixty-seven thousand, two hundred forty-nine".