55877615 has 8 divisors (see below), whose sum is σ = 67093920. Its totient is φ = 44674912.

The previous prime is 55877611. The next prime is 55877617. The reversal of 55877615 is 51677855.

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 55877615 - 2² = 55877611 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55877611) 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, 11942 + ... + 15948.

It is an arithmetic number, because the mean of its divisors is an integer number (8386740).

Almost surely, 2^55877615 is an apocalyptic number.

55877615 is a deficient number, since it is larger than the sum of its proper divisors (11216305).

55877615 is a wasteful number, since it uses less digits than its factorization.

55877615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6801.

The product of its digits is 294000, while the sum is 44.

The square root of 55877615 is about 7475.1331091827. The cubic root of 55877615 is about 382.3073260329.

The spelling of 55877615 in words is "fifty-five million, eight hundred seventy-seven thousand, six hundred fifteen".