105540625007 has 4 divisors (see below), whose sum is σ = 105543978696. Its totient is φ = 105537271320.

The previous prime is 105540624997. The next prime is 105540625153. The reversal of 105540625007 is 700526045501.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-105540625007 is a prime.

It is a super-2 number, since 2×105540625007² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105540625607) 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, 1629188 + ... + 1692729.

It is an arithmetic number, because the mean of its divisors is an integer number (26385994674).

Almost surely, 2^105540625007 is an apocalyptic number.

105540625007 is a deficient number, since it is larger than the sum of its proper divisors (3353689).

105540625007 is an equidigital number, since it uses as much as digits as its factorization.

105540625007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3353688.

The product of its (nonzero) digits is 42000, while the sum is 35.

The spelling of 105540625007 in words is "one hundred five billion, five hundred forty million, six hundred twenty-five thousand, seven".