51554440041 has 16 divisors (see below), whose sum is σ = 74103180480. Its totient is φ = 31693112640.

The previous prime is 51554440031. The next prime is 51554440073. The reversal of 51554440041 is 14004445515.

It is not a de Polignac number, because 51554440041 - 2⁵ = 51554440009 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 51554439984 and 51554440011.

It is not an unprimeable number, because it can be changed into a prime (51554440031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 642826 + ... + 718563.

It is an arithmetic number, because the mean of its divisors is an integer number (4631448780).

Almost surely, 2^51554440041 is an apocalyptic number.

It is an amenable number.

51554440041 is a deficient number, since it is larger than the sum of its proper divisors (22548740439).

51554440041 is a wasteful number, since it uses less digits than its factorization.

51554440041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1362376.

The product of its (nonzero) digits is 32000, while the sum is 33.

Adding to 51554440041 its reverse (14004445515), we get a palindrome (65558885556).

The spelling of 51554440041 in words is "fifty-one billion, five hundred fifty-four million, four hundred forty thousand, forty-one".