55850007 has 4 divisors (see below), whose sum is σ = 74466680. Its totient is φ = 37233336.

The previous prime is 55849993. The next prime is 55850017. The reversal of 55850007 is 70005855.

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 55850007 - 2⁶ = 55849943 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55850017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9308332 + ... + 9308337.

It is an arithmetic number, because the mean of its divisors is an integer number (18616670).

Almost surely, 2^55850007 is an apocalyptic number.

55850007 is a deficient number, since it is larger than the sum of its proper divisors (18616673).

55850007 is a wasteful number, since it uses less digits than its factorization.

55850007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18616672.

The product of its (nonzero) digits is 7000, while the sum is 30.

The square root of 55850007 is about 7473.2862249482. The cubic root of 55850007 is about 382.2443522200.

The spelling of 55850007 in words is "fifty-five million, eight hundred fifty thousand, seven".