51574945 has 8 divisors (see below), whose sum is σ = 61959744. Its totient is φ = 41213424.

The previous prime is 51574937. The next prime is 51574961. The reversal of 51574945 is 54947515.

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 51574945 - 2³ = 51574937 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51574898 and 51574907.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 499 + ... + 10168.

It is an arithmetic number, because the mean of its divisors is an integer number (7744968).

Almost surely, 2^51574945 is an apocalyptic number.

It is an amenable number.

51574945 is a deficient number, since it is larger than the sum of its proper divisors (10384799).

51574945 is a wasteful number, since it uses less digits than its factorization.

51574945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11639.

The product of its digits is 126000, while the sum is 40.

The square root of 51574945 is about 7181.5698144626. The cubic root of 51574945 is about 372.2313303713.

The spelling of 51574945 in words is "fifty-one million, five hundred seventy-four thousand, nine hundred forty-five".