55851357 has 8 divisors (see below), whose sum is σ = 74528640. Its totient is φ = 37204160.

The previous prime is 55851349. The next prime is 55851373. The reversal of 55851357 is 75315855.

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 55851357 - 2³ = 55851349 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55851377) 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, 2757 + ... + 10922.

It is an arithmetic number, because the mean of its divisors is an integer number (9316080).

Almost surely, 2^55851357 is an apocalyptic number.

It is an amenable number.

55851357 is a deficient number, since it is larger than the sum of its proper divisors (18677283).

55851357 is a wasteful number, since it uses less digits than its factorization.

55851357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15043.

The product of its digits is 105000, while the sum is 39.

The square root of 55851357 is about 7473.3765461135. The cubic root of 55851357 is about 382.2474320508.

It can be divided in two parts, 558 and 51357, that added together give a palindrome (51915).

The spelling of 55851357 in words is "fifty-five million, eight hundred fifty-one thousand, three hundred fifty-seven".