53015411551 has 4 divisors (see below), whose sum is σ = 53020363600. Its totient is φ = 53010459504.

The previous prime is 53015411459. The next prime is 53015411563. The reversal of 53015411551 is 15511451035.

It is a happy number.

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 53015411551 - 2¹⁵ = 53015378783 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53015418551) 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, 2459931 + ... + 2481388.

It is an arithmetic number, because the mean of its divisors is an integer number (13255090900).

Almost surely, 2^53015411551 is an apocalyptic number.

53015411551 is a deficient number, since it is larger than the sum of its proper divisors (4952049).

53015411551 is a wasteful number, since it uses less digits than its factorization.

53015411551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4952048.

The product of its (nonzero) digits is 7500, while the sum is 31.

Adding to 53015411551 its reverse (15511451035), we get a palindrome (68526862586).

The spelling of 53015411551 in words is "fifty-three billion, fifteen million, four hundred eleven thousand, five hundred fifty-one".