55450969 has 16 divisors (see below), whose sum is σ = 64627200. Its totient is φ = 46597824.

The previous prime is 55450963. The next prime is 55451017. The reversal of 55450969 is 96905455.

It is not a de Polignac number, because 55450969 - 2³ = 55450961 is a prime.

It is a super-2 number, since 2×55450969² = 6149619926077922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55450961) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 108687 + ... + 109195.

It is an arithmetic number, because the mean of its divisors is an integer number (4039200).

Almost surely, 2^55450969 is an apocalyptic number.

It is an amenable number.

55450969 is a deficient number, since it is larger than the sum of its proper divisors (9176231).

55450969 is a wasteful number, since it uses less digits than its factorization.

55450969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 792.

The product of its (nonzero) digits is 243000, while the sum is 43.

The square root of 55450969 is about 7446.5407405049. The cubic root of 55450969 is about 381.3318203323.

The spelling of 55450969 in words is "fifty-five million, four hundred fifty thousand, nine hundred sixty-nine".