55709412 has 24 divisors (see below), whose sum is σ = 141806112. Its totient is φ = 16881600.

The previous prime is 55709411. The next prime is 55709417. The reversal of 55709412 is 21490755.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (55709411) 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, 210889 + ... + 211152.

It is an arithmetic number, because the mean of its divisors is an integer number (5908588).

Almost surely, 2^55709412 is an apocalyptic number.

It is an amenable number.

55709412 is an abundant number, since it is smaller than the sum of its proper divisors (86096700).

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

55709412 is a wasteful number, since it uses less digits than its factorization.

55709412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 422059 (or 422057 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 33.

The square root of 55709412 is about 7463.8737931452. The cubic root of 55709412 is about 381.9233328409.

The spelling of 55709412 in words is "fifty-five million, seven hundred nine thousand, four hundred twelve".