51552011445 has 16 divisors (see below), whose sum is σ = 89981692992. Its totient is φ = 24994914560.

The previous prime is 51552011431. The next prime is 51552011461. The reversal of 51552011445 is 54411025515.

It is a happy number.

It is not a de Polignac number, because 51552011445 - 2¹⁰ = 51552010421 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 156218052 + ... + 156218381.

It is an arithmetic number, because the mean of its divisors is an integer number (5623855812).

Almost surely, 2^51552011445 is an apocalyptic number.

51552011445 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

51552011445 is a deficient number, since it is larger than the sum of its proper divisors (38429681547).

51552011445 is a wasteful number, since it uses less digits than its factorization.

51552011445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312436452.

The product of its (nonzero) digits is 20000, while the sum is 33.

The spelling of 51552011445 in words is "fifty-one billion, five hundred fifty-two million, eleven thousand, four hundred forty-five".