55927405 has 8 divisors (see below), whose sum is σ = 67161600. Its totient is φ = 44709456.

The previous prime is 55927397. The next prime is 55927409. The reversal of 55927405 is 50472955.

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 55927405 - 2³ = 55927397 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55927409) 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, 5616 + ... + 11974.

It is an arithmetic number, because the mean of its divisors is an integer number (8395200).

Almost surely, 2^55927405 is an apocalyptic number.

It is an amenable number.

55927405 is a deficient number, since it is larger than the sum of its proper divisors (11234195).

55927405 is a wasteful number, since it uses less digits than its factorization.

55927405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8123.

The product of its (nonzero) digits is 63000, while the sum is 37.

The square root of 55927405 is about 7478.4627431044. The cubic root of 55927405 is about 382.4208445429.

The spelling of 55927405 in words is "fifty-five million, nine hundred twenty-seven thousand, four hundred five".