55487346 has 16 divisors (see below), whose sum is σ = 113974464. Its totient is φ = 17995824.

The previous prime is 55487297. The next prime is 55487347. The reversal of 55487346 is 64378455.

It is a super-2 number, since 2×55487346² = 6157691132247432, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 55487298 and 55487307.

It is not an unprimeable number, because it can be changed into a prime (55487347) 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, 124750 + ... + 125193.

It is an arithmetic number, because the mean of its divisors is an integer number (7123404).

Almost surely, 2^55487346 is an apocalyptic number.

55487346 is an abundant number, since it is smaller than the sum of its proper divisors (58487118).

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

55487346 is a wasteful number, since it uses less digits than its factorization.

55487346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249985.

The product of its digits is 403200, while the sum is 42.

The square root of 55487346 is about 7448.9828835889. The cubic root of 55487346 is about 381.4151893314.

The spelling of 55487346 in words is "fifty-five million, four hundred eighty-seven thousand, three hundred forty-six".