5261135487 has 16 divisors (see below), whose sum is σ = 7207280640. Its totient is φ = 3411281952.

The previous prime is 5261135479. The next prime is 5261135489. The reversal of 5261135487 is 7845311625.

It is a happy number.

It is not a de Polignac number, because 5261135487 - 2³ = 5261135479 is a prime.

It is a super-2 number, since 2×5261135487² = 55359093225141454338, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5261135489) 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, 327714 + ... + 343392.

It is an arithmetic number, because the mean of its divisors is an integer number (450455040).

Almost surely, 2^5261135487 is an apocalyptic number.

5261135487 is a deficient number, since it is larger than the sum of its proper divisors (1946145153).

5261135487 is a wasteful number, since it uses less digits than its factorization.

5261135487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18742.

The product of its digits is 201600, while the sum is 42.

The square root of 5261135487 is about 72533.6851883316. The cubic root of 5261135487 is about 1739.2412562562.

The spelling of 5261135487 in words is "five billion, two hundred sixty-one million, one hundred thirty-five thousand, four hundred eighty-seven".