55097733 has 4 divisors (see below), whose sum is σ = 73463648. Its totient is φ = 36731820.

The previous prime is 55097729. The next prime is 55097741. The reversal of 55097733 is 33779055.

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 not a de Polignac number, because 55097733 - 2² = 55097729 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 55097691 and 55097700.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55097753) 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, 9182953 + ... + 9182958.

It is an arithmetic number, because the mean of its divisors is an integer number (18365912).

Almost surely, 2^55097733 is an apocalyptic number.

It is an amenable number.

55097733 is a deficient number, since it is larger than the sum of its proper divisors (18365915).

55097733 is a wasteful number, since it uses less digits than its factorization.

55097733 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18365914.

The product of its (nonzero) digits is 99225, while the sum is 39.

The square root of 55097733 is about 7422.7847200360. The cubic root of 55097733 is about 380.5203697244.

The spelling of 55097733 in words is "fifty-five million, ninety-seven thousand, seven hundred thirty-three".