55155151503 has 16 divisors (see below), whose sum is σ = 81733212000. Its totient is φ = 36760256640.

The previous prime is 55155151501. The next prime is 55155151507. The reversal of 55155151503 is 30515155155.

55155151503 is a `hidden beast` number, since 5 + 5 + 1 + 551 + 51 + 50 + 3 = 666.

55155151503 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 55155151503 - 2¹ = 55155151501 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55155151501) 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, 170028 + ... + 373121.

It is an arithmetic number, because the mean of its divisors is an integer number (5108325750).

Almost surely, 2^55155151503 is an apocalyptic number.

55155151503 is a deficient number, since it is larger than the sum of its proper divisors (26578060497).

55155151503 is a wasteful number, since it uses less digits than its factorization.

55155151503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 546919 (or 546913 counting only the distinct ones).

The product of its (nonzero) digits is 46875, while the sum is 36.

The spelling of 55155151503 in words is "fifty-five billion, one hundred fifty-five million, one hundred fifty-one thousand, five hundred three".