7220527 has 4 divisors (see below), whose sum is σ = 7232920. Its totient is φ = 7208136.

The previous prime is 7220519. The next prime is 7220531. The reversal of 7220527 is 7250227.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7250227 = 257 ⋅28211.

It is a cyclic number.

It is not a de Polignac number, because 7220527 - 2³ = 7220519 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7220557) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5277 + ... + 6502.

It is an arithmetic number, because the mean of its divisors is an integer number (1808230).

Almost surely, 2^7220527 is an apocalyptic number.

7220527 is a deficient number, since it is larger than the sum of its proper divisors (12393).

7220527 is a wasteful number, since it uses less digits than its factorization.

7220527 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12392.

The product of its (nonzero) digits is 1960, while the sum is 25.

The square root of 7220527 is about 2687.1038312652. The cubic root of 7220527 is about 193.2812083682.

The spelling of 7220527 in words is "seven million, two hundred twenty thousand, five hundred twenty-seven".