55909467 has 12 divisors (see below), whose sum is σ = 82886440. Its totient is φ = 37247076.

The previous prime is 55909463. The next prime is 55909471. The reversal of 55909467 is 76490955.

It is a happy number.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

55909467 is a `hidden beast` number, since 559 + 0 + 94 + 6 + 7 = 666.

It is an interprime number because it is at equal distance from previous prime (55909463) and next prime (55909471).

It is not a de Polignac number, because 55909467 - 2² = 55909463 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55909463) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 38134 + ... + 39572.

Almost surely, 2^55909467 is an apocalyptic number.

55909467 is a deficient number, since it is larger than the sum of its proper divisors (26976973).

55909467 is an frugal number, since it uses more digits than its factorization.

55909467 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2887 (or 1442 counting only the distinct ones).

The product of its (nonzero) digits is 340200, while the sum is 45.

The square root of 55909467 is about 7477.2633362748. The cubic root of 55909467 is about 382.3799546391.

The spelling of 55909467 in words is "fifty-five million, nine hundred nine thousand, four hundred sixty-seven".