51562263551 has 4 divisors (see below), whose sum is σ = 51563411952. Its totient is φ = 51561115152.

The previous prime is 51562263547. The next prime is 51562263563. The reversal of 51562263551 is 15536226515.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15536226515 = 5 ⋅3107245303.

It is a cyclic number.

It is not a de Polignac number, because 51562263551 - 2² = 51562263547 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51562263499 and 51562263508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51562223551) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 503990 + ... + 597603.

It is an arithmetic number, because the mean of its divisors is an integer number (12890852988).

Almost surely, 2^51562263551 is an apocalyptic number.

51562263551 is a deficient number, since it is larger than the sum of its proper divisors (1148401).

51562263551 is a wasteful number, since it uses less digits than its factorization.

51562263551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1148400.

The product of its digits is 270000, while the sum is 41.

The spelling of 51562263551 in words is "fifty-one billion, five hundred sixty-two million, two hundred sixty-three thousand, five hundred fifty-one".