52620545 has 16 divisors (see below), whose sum is σ = 64143360. Its totient is φ = 41436864.

The previous prime is 52620541. The next prime is 52620553. The reversal of 52620545 is 54502625.

52620545 = T₄₆ + T₄₇ + ... + T₆₈₀.

It is a cyclic number.

It is not a de Polignac number, because 52620545 - 2² = 52620541 is a prime.

It is not an unprimeable number, because it can be changed into a prime (52620541) 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 15 ways as a sum of consecutive naturals, for example, 109616 + ... + 110094.

It is an arithmetic number, because the mean of its divisors is an integer number (4008960).

Almost surely, 2^52620545 is an apocalyptic number.

It is an amenable number.

52620545 is a deficient number, since it is larger than the sum of its proper divisors (11522815).

52620545 is a wasteful number, since it uses less digits than its factorization.

52620545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 784.

The product of its (nonzero) digits is 12000, while the sum is 29.

The square root of 52620545 is about 7254.0019988969. The cubic root of 52620545 is about 374.7299863678.

Subtracting from 52620545 its sum of digits (29), we obtain a square (52620516 = 7254²).

The spelling of 52620545 in words is "fifty-two million, six hundred twenty thousand, five hundred forty-five".