51233245 has 32 divisors (see below), whose sum is σ = 72783360. Its totient is φ = 33895680.

The previous prime is 51233239. The next prime is 51233251. The reversal of 51233245 is 54233215.

It is an interprime number because it is at equal distance from previous prime (51233239) and next prime (51233251).

It is not a de Polignac number, because 51233245 - 2⁹ = 51232733 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 131511 + ... + 131899.

It is an arithmetic number, because the mean of its divisors is an integer number (2274480).

Almost surely, 2^51233245 is an apocalyptic number.

It is an amenable number.

51233245 is a deficient number, since it is larger than the sum of its proper divisors (21550115).

51233245 is a wasteful number, since it uses less digits than its factorization.

51233245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 525.

The product of its digits is 3600, while the sum is 25.

The square root of 51233245 is about 7157.7402160179. The cubic root of 51233245 is about 371.4074588943.

The spelling of 51233245 in words is "fifty-one million, two hundred thirty-three thousand, two hundred forty-five".