51101007 has 4 divisors (see below), whose sum is σ = 68134680. Its totient is φ = 34067336.

The previous prime is 51101003. The next prime is 51101023. The reversal of 51101007 is 70010115.

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 51101007 - 2² = 51101003 is a prime.

It is a super-2 number, since 2×51101007² = 5222625832828098, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51101003) 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, 8516832 + ... + 8516837.

It is an arithmetic number, because the mean of its divisors is an integer number (17033670).

Almost surely, 2^51101007 is an apocalyptic number.

51101007 is a deficient number, since it is larger than the sum of its proper divisors (17033673).

51101007 is a wasteful number, since it uses less digits than its factorization.

51101007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17033672.

The product of its (nonzero) digits is 35, while the sum is 15.

The square root of 51101007 is about 7148.4968349996. The cubic root of 51101007 is about 371.0876372863.

The spelling of 51101007 in words is "fifty-one million, one hundred one thousand, seven".