55407361 has 4 divisors (see below), whose sum is σ = 56108800. Its totient is φ = 54705924.

The previous prime is 55407353. The next prime is 55407379. The reversal of 55407361 is 16370455.

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 a cyclic number.

It is not a de Polignac number, because 55407361 - 2³ = 55407353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55407311) 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, 350601 + ... + 350758.

It is an arithmetic number, because the mean of its divisors is an integer number (14027200).

Almost surely, 2^55407361 is an apocalyptic number.

It is an amenable number.

55407361 is a deficient number, since it is larger than the sum of its proper divisors (701439).

55407361 is an equidigital number, since it uses as much as digits as its factorization.

55407361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 701438.

The product of its (nonzero) digits is 12600, while the sum is 31.

The square root of 55407361 is about 7443.6120936008. The cubic root of 55407361 is about 381.2318312223.

The spelling of 55407361 in words is "fifty-five million, four hundred seven thousand, three hundred sixty-one".