55153613 has 8 divisors (see below), whose sum is σ = 56803200. Its totient is φ = 53527968.

The previous prime is 55153603. The next prime is 55153639. The reversal of 55153613 is 31635155.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 55153613 - 2¹² = 55149517 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 (55153603) 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, 1256 + ... + 10577.

It is an arithmetic number, because the mean of its divisors is an integer number (7100400).

Almost surely, 2^55153613 is an apocalyptic number.

It is an amenable number.

55153613 is a deficient number, since it is larger than the sum of its proper divisors (1649587).

55153613 is a wasteful number, since it uses less digits than its factorization.

55153613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11971.

The product of its digits is 6750, while the sum is 29.

The square root of 55153613 is about 7426.5478521316. The cubic root of 55153613 is about 380.6489672346.

Adding to 55153613 its reverse (31635155), we get a palindrome (86788768).

The spelling of 55153613 in words is "fifty-five million, one hundred fifty-three thousand, six hundred thirteen".