55550745 has 32 divisors (see below), whose sum is σ = 99066240. Its totient is φ = 29534400.

The previous prime is 55550723. The next prime is 55550753. The reversal of 55550745 is 54705555.

It is a happy number.

It is not a de Polignac number, because 55550745 - 2⁷ = 55550617 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 78895 + ... + 79595.

It is an arithmetic number, because the mean of its divisors is an integer number (3095820).

Almost surely, 2^55550745 is an apocalyptic number.

It is an amenable number.

55550745 is a deficient number, since it is larger than the sum of its proper divisors (43515495).

55550745 is a wasteful number, since it uses less digits than its factorization.

55550745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1302 (or 1296 counting only the distinct ones).

The product of its (nonzero) digits is 87500, while the sum is 36.

The square root of 55550745 is about 7453.2372161364. The cubic root of 55550745 is about 381.5604004436.

The spelling of 55550745 in words is "fifty-five million, five hundred fifty thousand, seven hundred forty-five".