51432901 has 8 divisors (see below), whose sum is σ = 56740824. Its totient is φ = 46318080.

The previous prime is 51432883. The next prime is 51432907. The reversal of 51432901 is 10923415.

It can be written as a sum of positive squares in 4 ways, for example, as 6890625 + 44542276 = 2625^2 + 6674^2 .

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 51432901 - 2¹⁵ = 51400133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51432907) 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, 47716 + ... + 48781.

It is an arithmetic number, because the mean of its divisors is an integer number (7092603).

Almost surely, 2^51432901 is an apocalyptic number.

It is an amenable number.

51432901 is a deficient number, since it is larger than the sum of its proper divisors (5307923).

51432901 is a wasteful number, since it uses less digits than its factorization.

51432901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96551.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 51432901 is about 7171.6735145989. The cubic root of 51432901 is about 371.8892919301.

The spelling of 51432901 in words is "fifty-one million, four hundred thirty-two thousand, nine hundred one".