55674321 has 4 divisors (see below), whose sum is σ = 74232432. Its totient is φ = 37116212.

The previous prime is 55674319. The next prime is 55674323. The reversal of 55674321 is 12347655.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (55674319) and next prime (55674323).

It is a cyclic number.

It is not a de Polignac number, because 55674321 - 2¹ = 55674319 is a prime.

It is a super-2 number, since 2×55674321² = 6199260037622082, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (55674323) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9279051 + ... + 9279056.

It is an arithmetic number, because the mean of its divisors is an integer number (18558108).

Almost surely, 2^55674321 is an apocalyptic number.

It is an amenable number.

55674321 is a deficient number, since it is larger than the sum of its proper divisors (18558111).

55674321 is a wasteful number, since it uses less digits than its factorization.

55674321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18558110.

The product of its digits is 25200, while the sum is 33.

The square root of 55674321 is about 7461.5226998247. The cubic root of 55674321 is about 381.8431256483.

The spelling of 55674321 in words is "fifty-five million, six hundred seventy-four thousand, three hundred twenty-one".