55931827 has 8 divisors (see below), whose sum is σ = 65650016. Its totient is φ = 46645632.

The previous prime is 55931803. The next prime is 55931857. The reversal of 55931827 is 72813955.

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 55931827 - 2¹⁵ = 55899059 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55931827.

It is not an unprimeable number, because it can be changed into a prime (55931857) 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, 107718 + ... + 108235.

It is an arithmetic number, because the mean of its divisors is an integer number (8206252).

Almost surely, 2^55931827 is an apocalyptic number.

55931827 is a deficient number, since it is larger than the sum of its proper divisors (9718189).

55931827 is a wasteful number, since it uses less digits than its factorization.

55931827 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215997.

The product of its digits is 75600, while the sum is 40.

The square root of 55931827 is about 7478.7583862564. The cubic root of 55931827 is about 382.4309232060.

The spelling of 55931827 in words is "fifty-five million, nine hundred thirty-one thousand, eight hundred twenty-seven".