55153687 has 6 divisors (see below), whose sum is σ = 55672448. Its totient is φ = 54636372.

The previous prime is 55153669. The next prime is 55153697. The reversal of 55153687 is 78635155.

It is not a de Polignac number, because 55153687 - 2¹¹ = 55151639 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55153667) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 83364 + ... + 84022.

Almost surely, 2^55153687 is an apocalyptic number.

55153687 is a deficient number, since it is larger than the sum of its proper divisors (518761).

55153687 is an frugal number, since it uses more digits than its factorization.

55153687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1445 (or 786 counting only the distinct ones).

The product of its digits is 126000, while the sum is 40.

The square root of 55153687 is about 7426.5528342563. The cubic root of 55153687 is about 380.6491374743.

The spelling of 55153687 in words is "fifty-five million, one hundred fifty-three thousand, six hundred eighty-seven".