51351033 has 8 divisors (see below), whose sum is σ = 72495648. Its totient is φ = 32220224.

The previous prime is 51350989. The next prime is 51351043. The reversal of 51351033 is 33015315.

It is a happy number.

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 51351033 - 2⁸ = 51350777 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51351043) 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, 503391 + ... + 503492.

It is an arithmetic number, because the mean of its divisors is an integer number (9061956).

Almost surely, 2^51351033 is an apocalyptic number.

It is an amenable number.

51351033 is a deficient number, since it is larger than the sum of its proper divisors (21144615).

51351033 is a wasteful number, since it uses less digits than its factorization.

51351033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1006903.

The product of its (nonzero) digits is 675, while the sum is 21.

The square root of 51351033 is about 7165.9635081404. The cubic root of 51351033 is about 371.6918696559.

Adding to 51351033 its reverse (33015315), we get a palindrome (84366348).

The spelling of 51351033 in words is "fifty-one million, three hundred fifty-one thousand, thirty-three".