538662551 has 16 divisors (see below), whose sum is σ = 632136960. Its totient is φ = 449373120.

The previous prime is 538662529. The next prime is 538662563. The reversal of 538662551 is 155266835.

It is not a de Polignac number, because 538662551 - 2¹⁰ = 538661527 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a junction number, because it is equal to n+sod(n) for n = 538662499 and 538662508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (538662511) 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, 132020 + ... + 136038.

It is an arithmetic number, because the mean of its divisors is an integer number (39508560).

Almost surely, 2^538662551 is an apocalyptic number.

538662551 is a deficient number, since it is larger than the sum of its proper divisors (93474409).

538662551 is a wasteful number, since it uses less digits than its factorization.

538662551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4534.

The product of its digits is 216000, while the sum is 41.

The square root of 538662551 is about 23209.1049159592. The cubic root of 538662551 is about 813.6524337821.

The spelling of 538662551 in words is "five hundred thirty-eight million, six hundred sixty-two thousand, five hundred fifty-one".