620601501 has 32 divisors (see below), whose sum is σ = 903168000. Its totient is φ = 376786368.

The previous prime is 620601497. The next prime is 620601517. The reversal of 620601501 is 105106026.

It is a happy number.

It is not a de Polignac number, because 620601501 - 2² = 620601497 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (620601551) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1295380 + ... + 1295858.

It is an arithmetic number, because the mean of its divisors is an integer number (28224000).

Almost surely, 2^620601501 is an apocalyptic number.

It is an amenable number.

620601501 is a deficient number, since it is larger than the sum of its proper divisors (282566499).

620601501 is a wasteful number, since it uses less digits than its factorization.

620601501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 873.

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 620601501 is about 24911.8746986252. The cubic root of 620601501 is about 852.9775624508.

Adding to 620601501 its reverse (105106026), we get a palindrome (725707527).

The spelling of 620601501 in words is "six hundred twenty million, six hundred one thousand, five hundred one".