55726007 has 4 divisors (see below), whose sum is σ = 55762416. Its totient is φ = 55689600.

The previous prime is 55725997. The next prime is 55726019. The reversal of 55726007 is 70062755.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 55726007 - 2⁸ = 55725751 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 (55726037) 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, 15803 + ... + 19004.

It is an arithmetic number, because the mean of its divisors is an integer number (13940604).

Almost surely, 2^55726007 is an apocalyptic number.

55726007 is a deficient number, since it is larger than the sum of its proper divisors (36409).

55726007 is a wasteful number, since it uses less digits than its factorization.

55726007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36408.

The product of its (nonzero) digits is 14700, while the sum is 32.

The square root of 55726007 is about 7464.9853985122. The cubic root of 55726007 is about 381.9612521574.

The spelling of 55726007 in words is "fifty-five million, seven hundred twenty-six thousand, seven".