55766045 has 16 divisors (see below), whose sum is σ = 70994880. Its totient is φ = 41932800.

The previous prime is 55766041. The next prime is 55766047. The reversal of 55766045 is 54066755.

It is not a de Polignac number, because 55766045 - 2² = 55766041 is a prime.

It is a super-4 number, since 4×55766045⁴ (a number of 32 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55766041) 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, 10205 + ... + 14685.

It is an arithmetic number, because the mean of its divisors is an integer number (4437180).

Almost surely, 2^55766045 is an apocalyptic number.

It is an amenable number.

55766045 is a deficient number, since it is larger than the sum of its proper divisors (15228835).

55766045 is a wasteful number, since it uses less digits than its factorization.

55766045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4636.

The product of its (nonzero) digits is 126000, while the sum is 38.

The square root of 55766045 is about 7467.6666369087. Note that the first 4 decimals coincide. The cubic root of 55766045 is about 382.0527073824.

The spelling of 55766045 in words is "fifty-five million, seven hundred sixty-six thousand, forty-five".