51402901 has 8 divisors (see below), whose sum is σ = 56145024. Its totient is φ = 46672320.

The previous prime is 51402881. The next prime is 51402973. The reversal of 51402901 is 10920415.

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 51402901 - 2⁹ = 51402389 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 (51400901) 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, 8356 + ... + 13138.

It is an arithmetic number, because the mean of its divisors is an integer number (7018128).

Almost surely, 2^51402901 is an apocalyptic number.

It is an amenable number.

51402901 is a deficient number, since it is larger than the sum of its proper divisors (4742123).

51402901 is a wasteful number, since it uses less digits than its factorization.

51402901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5771.

The product of its (nonzero) digits is 360, while the sum is 22.

The square root of 51402901 is about 7169.5816474882. The cubic root of 51402901 is about 371.8169721476.

The spelling of 51402901 in words is "fifty-one million, four hundred two thousand, nine hundred one".