55573156 has 6 divisors (see below), whose sum is σ = 97253030. Its totient is φ = 27786576.

The previous prime is 55573139. The next prime is 55573159. The reversal of 55573156 is 65137555.

It can be written as a sum of positive squares in only one way, i.e., 43560000 + 12013156 = 6600^2 + 3466^2 .

It is not an unprimeable number, because it can be changed into a prime (55573159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6946641 + ... + 6946648.

Almost surely, 2^55573156 is an apocalyptic number.

It is an amenable number.

55573156 is a deficient number, since it is larger than the sum of its proper divisors (41679874).

55573156 is a wasteful number, since it uses less digits than its factorization.

55573156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13893293 (or 13893291 counting only the distinct ones).

The product of its digits is 78750, while the sum is 37.

The square root of 55573156 is about 7454.7405052087. The cubic root of 55573156 is about 381.6117048888.

The spelling of 55573156 in words is "fifty-five million, five hundred seventy-three thousand, one hundred fifty-six".