51246245 has 16 divisors (see below), whose sum is σ = 65302848. Its totient is φ = 38472960.

The previous prime is 51246227. The next prime is 51246271. The reversal of 51246245 is 54264215.

It is not a de Polignac number, because 51246245 - 2¹⁴ = 51229861 is a prime.

It is a congruent number.

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, 39050 + ... + 40340.

It is an arithmetic number, because the mean of its divisors is an integer number (4081428).

Almost surely, 2^51246245 is an apocalyptic number.

It is an amenable number.

51246245 is a deficient number, since it is larger than the sum of its proper divisors (14056603).

51246245 is a wasteful number, since it uses less digits than its factorization.

51246245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1780.

The product of its digits is 9600, while the sum is 29.

The square root of 51246245 is about 7158.6482662581. The cubic root of 51246245 is about 371.4388700652.

The spelling of 51246245 in words is "fifty-one million, two hundred forty-six thousand, two hundred forty-five".