51211150401 has 8 divisors (see below), whose sum is σ = 68295104640. Its totient is φ = 34133981552.

The previous prime is 51211150399. The next prime is 51211150423. The reversal of 51211150401 is 10405111215.

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 51211150401 - 2¹ = 51211150399 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51211150801) 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, 1678710 + ... + 1708943.

It is an arithmetic number, because the mean of its divisors is an integer number (8536888080).

Almost surely, 2^51211150401 is an apocalyptic number.

It is an amenable number.

51211150401 is a deficient number, since it is larger than the sum of its proper divisors (17083954239).

51211150401 is a wasteful number, since it uses less digits than its factorization.

51211150401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3392695.

The product of its (nonzero) digits is 200, while the sum is 21.

Adding to 51211150401 its reverse (10405111215), we get a palindrome (61616261616).

The spelling of 51211150401 in words is "fifty-one billion, two hundred eleven million, one hundred fifty thousand, four hundred one".