55413357 has 4 divisors (see below), whose sum is σ = 73884480. Its totient is φ = 36942236.

The previous prime is 55413343. The next prime is 55413359. The reversal of 55413357 is 75331455.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 55413357 - 2¹² = 55409261 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55413359) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9235557 + ... + 9235562.

It is an arithmetic number, because the mean of its divisors is an integer number (18471120).

Almost surely, 2^55413357 is an apocalyptic number.

It is an amenable number.

55413357 is a deficient number, since it is larger than the sum of its proper divisors (18471123).

55413357 is a wasteful number, since it uses less digits than its factorization.

55413357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18471122.

The product of its digits is 31500, while the sum is 33.

The square root of 55413357 is about 7444.0148441550. The cubic root of 55413357 is about 381.2455826058.

The spelling of 55413357 in words is "fifty-five million, four hundred thirteen thousand, three hundred fifty-seven".