51226553157 has 8 divisors (see below), whose sum is σ = 73556076384. Its totient is φ = 31524032688.

The previous prime is 51226553149. The next prime is 51226553219. The reversal of 51226553157 is 75135562215.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 51226553157 - 2³ = 51226553149 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51226553957) 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, 656750643 + ... + 656750720.

It is an arithmetic number, because the mean of its divisors is an integer number (9194509548).

Almost surely, 2^51226553157 is an apocalyptic number.

It is an amenable number.

51226553157 is a deficient number, since it is larger than the sum of its proper divisors (22329523227).

51226553157 is a wasteful number, since it uses less digits than its factorization.

51226553157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1313501379.

The product of its digits is 315000, while the sum is 42.

The spelling of 51226553157 in words is "fifty-one billion, two hundred twenty-six million, five hundred fifty-three thousand, one hundred fifty-seven".