55131527 has 8 divisors (see below), whose sum is σ = 63681552. Its totient is φ = 47171200.

The previous prime is 55131509. The next prime is 55131541. The reversal of 55131527 is 72513155.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 55131527 - 2¹² = 55127431 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 55131527.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55131127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 147224 + ... + 147597.

It is an arithmetic number, because the mean of its divisors is an integer number (7960194).

Almost surely, 2^55131527 is an apocalyptic number.

55131527 is a deficient number, since it is larger than the sum of its proper divisors (8550025).

55131527 is a wasteful number, since it uses less digits than its factorization.

55131527 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294849.

The product of its digits is 5250, while the sum is 29.

The square root of 55131527 is about 7425.0607404923. The cubic root of 55131527 is about 380.5981507660.

The spelling of 55131527 in words is "fifty-five million, one hundred thirty-one thousand, five hundred twenty-seven".