620523541 has 8 divisors (see below), whose sum is σ = 677124864. Its totient is φ = 563953920.

The previous prime is 620523539. The next prime is 620523571. The reversal of 620523541 is 145325026.

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 620523541 - 2¹ = 620523539 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 (620523571) 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, 54261 + ... + 64693.

It is an arithmetic number, because the mean of its divisors is an integer number (84640608).

Almost surely, 2^620523541 is an apocalyptic number.

It is an amenable number.

620523541 is a deficient number, since it is larger than the sum of its proper divisors (56601323).

620523541 is a wasteful number, since it uses less digits than its factorization.

620523541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15851.

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 620523541 is about 24910.3099338406. The cubic root of 620523541 is about 852.9418439232.

Adding to 620523541 its reverse (145325026), we get a palindrome (765848567).

The spelling of 620523541 in words is "six hundred twenty million, five hundred twenty-three thousand, five hundred forty-one".