503540552051 has 4 divisors (see below), whose sum is σ = 503685961392. Its totient is φ = 503395142712.

The previous prime is 503540552029. The next prime is 503540552069. The reversal of 503540552051 is 150255045305.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 503540552051 - 2²² = 503536357747 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (503540552351) 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, 72699476 + ... + 72706401.

It is an arithmetic number, because the mean of its divisors is an integer number (125921490348).

Almost surely, 2^503540552051 is an apocalyptic number.

503540552051 is a deficient number, since it is larger than the sum of its proper divisors (145409341).

503540552051 is a wasteful number, since it uses less digits than its factorization.

503540552051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145409340.

The product of its (nonzero) digits is 75000, while the sum is 35.

Adding to 503540552051 its reverse (150255045305), we get a palindrome (653795597356).

The spelling of 503540552051 in words is "five hundred three billion, five hundred forty million, five hundred fifty-two thousand, fifty-one".