69120455 has 4 divisors (see below), whose sum is σ = 82944552. Its totient is φ = 55296360.

The previous prime is 69120449. The next prime is 69120463. The reversal of 69120455 is 55402196.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 69120455 - 2⁴ = 69120439 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6912041 + ... + 6912050.

It is an arithmetic number, because the mean of its divisors is an integer number (20736138).

Almost surely, 2^69120455 is an apocalyptic number.

69120455 is a deficient number, since it is larger than the sum of its proper divisors (13824097).

69120455 is a wasteful number, since it uses less digits than its factorization.

69120455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13824096.

The product of its (nonzero) digits is 10800, while the sum is 32.

The square root of 69120455 is about 8313.8712402827. The cubic root of 69120455 is about 410.3951277086.

The spelling of 69120455 in words is "sixty-nine million, one hundred twenty thousand, four hundred fifty-five".