51101445 has 8 divisors (see below), whose sum is σ = 81762336. Its totient is φ = 27254096.

The previous prime is 51101441. The next prime is 51101461. The reversal of 51101445 is 54410115.

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 51101445 - 2² = 51101441 is a prime.

It is a super-2 number, since 2×51101445² = 5222715362176050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51101441) 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, 1703367 + ... + 1703396.

It is an arithmetic number, because the mean of its divisors is an integer number (10220292).

Almost surely, 2^51101445 is an apocalyptic number.

It is an amenable number.

51101445 is a deficient number, since it is larger than the sum of its proper divisors (30660891).

51101445 is a wasteful number, since it uses less digits than its factorization.

51101445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3406771.

The product of its (nonzero) digits is 400, while the sum is 21.

The square root of 51101445 is about 7148.5274707453. The cubic root of 51101445 is about 371.0886975127.

It can be divided in two parts, 5110 and 1445, that added together give a triangular number (6555 = T₁₁₄).

The spelling of 51101445 in words is "fifty-one million, one hundred one thousand, four hundred forty-five".