55401307 has 8 divisors (see below), whose sum is σ = 59838800. Its totient is φ = 50988960.

The previous prime is 55401299. The next prime is 55401383. The reversal of 55401307 is 70310455.

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

It is a cyclic number.

It is not a de Polignac number, because 55401307 - 2³ = 55401299 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55401007) 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, 1569 + ... + 10642.

It is an arithmetic number, because the mean of its divisors is an integer number (7479850).

Almost surely, 2^55401307 is an apocalyptic number.

55401307 is a deficient number, since it is larger than the sum of its proper divisors (4437493).

55401307 is a wasteful number, since it uses less digits than its factorization.

55401307 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12573.

The product of its (nonzero) digits is 2100, while the sum is 25.

The square root of 55401307 is about 7443.2054250840. The cubic root of 55401307 is about 381.2179458135.

The spelling of 55401307 in words is "fifty-five million, four hundred one thousand, three hundred seven".