5215508477 has 4 divisors (see below), whose sum is σ = 5218505916. Its totient is φ = 5212511040.

The previous prime is 5215508471. The next prime is 5215508483. The reversal of 5215508477 is 7748055125.

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

It is an interprime number because it is at equal distance from previous prime (5215508471) and next prime (5215508483).

It can be written as a sum of positive squares in 2 ways, for example, as 2143134436 + 3072374041 = 46294^2 + 55429^2 .

It is a cyclic number.

It is not a de Polignac number, because 5215508477 - 2⁴ = 5215508461 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 (5215508471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1496108 + ... + 1499589.

It is an arithmetic number, because the mean of its divisors is an integer number (1304626479).

Almost surely, 2^5215508477 is an apocalyptic number.

It is an amenable number.

5215508477 is a deficient number, since it is larger than the sum of its proper divisors (2997439).

5215508477 is a wasteful number, since it uses less digits than its factorization.

5215508477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2997438.

The product of its (nonzero) digits is 392000, while the sum is 44.

The square root of 5215508477 is about 72218.4773932544. The cubic root of 5215508477 is about 1734.1988153090.

The spelling of 5215508477 in words is "five billion, two hundred fifteen million, five hundred eight thousand, four hundred seventy-seven".