55437667 has 2 divisors, whose sum is σ = 55437668. Its totient is φ = 55437666.

The previous prime is 55437637. The next prime is 55437709. The reversal of 55437667 is 76673455.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55437667 is a prime.

It is not a weakly prime, because it can be changed into another prime (55437637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27718833 + 27718834.

It is an arithmetic number, because the mean of its divisors is an integer number (27718834).

Almost surely, 2^55437667 is an apocalyptic number.

55437667 is a deficient number, since it is larger than the sum of its proper divisors (1).

55437667 is an equidigital number, since it uses as much as digits as its factorization.

55437667 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 529200, while the sum is 43.

The square root of 55437667 is about 7445.6475205317. The cubic root of 55437667 is about 381.3013256350.

The spelling of 55437667 in words is "fifty-five million, four hundred thirty-seven thousand, six hundred sixty-seven".