55883745 has 24 divisors (see below), whose sum is σ = 98235072. Its totient is φ = 29383200.

The previous prime is 55883689. The next prime is 55883749. The reversal of 55883745 is 54738855.

55883745 = T₁₂₁₉ + T₁₂₂₀ + ... + T₁₂₈₉.

It is not a de Polignac number, because 55883745 - 2⁸ = 55883489 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 55883745.

It is not an unprimeable number, because it can be changed into a prime (55883749) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5551 + ... + 11940.

It is an arithmetic number, because the mean of its divisors is an integer number (4093128).

Almost surely, 2^55883745 is an apocalyptic number.

It is an amenable number.

55883745 is a deficient number, since it is larger than the sum of its proper divisors (42351327).

55883745 is a wasteful number, since it uses less digits than its factorization.

55883745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17573 (or 17570 counting only the distinct ones).

The product of its digits is 672000, while the sum is 45.

The square root of 55883745 is about 7475.5431240814. The cubic root of 55883745 is about 382.3213057409.

The spelling of 55883745 in words is "fifty-five million, eight hundred eighty-three thousand, seven hundred forty-five".