55691356 has 24 divisors (see below), whose sum is σ = 117246080. Its totient is φ = 22611312.

The previous prime is 55691341. The next prime is 55691357. The reversal of 55691356 is 65319655.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55691357) 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, 51810 + ... + 52873.

Almost surely, 2^55691356 is an apocalyptic number.

It is an amenable number.

55691356 is an abundant number, since it is smaller than the sum of its proper divisors (61554724).

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

55691356 is a wasteful number, since it uses less digits than its factorization.

55691356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104713 (or 104711 counting only the distinct ones).

The product of its digits is 121500, while the sum is 40.

The square root of 55691356 is about 7462.6641355484. The cubic root of 55691356 is about 381.8820666072.

The spelling of 55691356 in words is "fifty-five million, six hundred ninety-one thousand, three hundred fifty-six".