55862646 has 48 divisors (see below), whose sum is σ = 137623536. Its totient is φ = 15020544.

The previous prime is 55862621. The next prime is 55862647. The reversal of 55862646 is 64626855.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 55862598 and 55862607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55862647) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 591 + ... + 10586.

It is an arithmetic number, because the mean of its divisors is an integer number (2867157).

Almost surely, 2^55862646 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55862646, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68811768).

55862646 is an abundant number, since it is smaller than the sum of its proper divisors (81760890).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55862646 is a wasteful number, since it uses less digits than its factorization.

55862646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11213 (or 11206 counting only the distinct ones).

The product of its digits is 345600, while the sum is 42.

The square root of 55862646 is about 7474.1317890441. The cubic root of 55862646 is about 382.2731843380.

The spelling of 55862646 in words is "fifty-five million, eight hundred sixty-two thousand, six hundred forty-six".