51413345 has 16 divisors (see below), whose sum is σ = 63920640. Its totient is φ = 39657600.

The previous prime is 51413333. The next prime is 51413363. The reversal of 51413345 is 54331415.

It is not a de Polignac number, because 51413345 - 2⁶ = 51413281 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 62990 + ... + 63800.

It is an arithmetic number, because the mean of its divisors is an integer number (3995040).

Almost surely, 2^51413345 is an apocalyptic number.

It is an amenable number.

51413345 is a deficient number, since it is larger than the sum of its proper divisors (12507295).

51413345 is a wasteful number, since it uses less digits than its factorization.

51413345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1256.

The product of its digits is 3600, while the sum is 26.

The square root of 51413345 is about 7170.3099654060. The cubic root of 51413345 is about 371.8421522666.

The spelling of 51413345 in words is "fifty-one million, four hundred thirteen thousand, three hundred forty-five".