55123007 has 8 divisors (see below), whose sum is σ = 56932512. Its totient is φ = 53330400.

The previous prime is 55123001. The next prime is 55123037. The reversal of 55123007 is 70032155.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 55123007 - 2⁶ = 55122943 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 (55123001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2582 + ... + 10812.

It is an arithmetic number, because the mean of its divisors is an integer number (7116564).

Almost surely, 2^55123007 is an apocalyptic number.

55123007 is a deficient number, since it is larger than the sum of its proper divisors (1809505).

55123007 is a wasteful number, since it uses less digits than its factorization.

55123007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8449.

The product of its (nonzero) digits is 1050, while the sum is 23.

The square root of 55123007 is about 7424.4869856442. The cubic root of 55123007 is about 380.5785439368.

The spelling of 55123007 in words is "fifty-five million, one hundred twenty-three thousand, seven".