7520453775 has 48 divisors (see below), whose sum is σ = 13885024000. Its totient is φ = 3990682080.

The previous prime is 7520453753. The next prime is 7520453779. The reversal of 7520453775 is 5773540257.

7520453775 is a `hidden beast` number, since 7 + 520 + 4 + 53 + 7 + 75 = 666.

It is not a de Polignac number, because 7520453775 - 2¹⁴ = 7520437391 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 7520453775.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7520453779) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 106332 + ... + 162318.

Almost surely, 2^7520453775 is an apocalyptic number.

7520453775 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

7520453775 is a deficient number, since it is larger than the sum of its proper divisors (6364570225).

7520453775 is a wasteful number, since it uses less digits than its factorization.

7520453775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56205 (or 56194 counting only the distinct ones).

The product of its (nonzero) digits is 1029000, while the sum is 45.

The square root of 7520453775 is about 86720.5499002399. The cubic root of 7520453775 is about 1959.2116237029.

The spelling of 7520453775 in words is "seven billion, five hundred twenty million, four hundred fifty-three thousand, seven hundred seventy-five".