620452545 has 16 divisors (see below), whose sum is σ = 993988800. Its totient is φ = 330486464.

The previous prime is 620452541. The next prime is 620452559. The reversal of 620452545 is 545254026.

It is a cyclic number.

It is not a de Polignac number, because 620452545 - 2² = 620452541 is a prime.

It is a super-3 number, since 3×620452545³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (620452541) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13995 + ... + 37904.

It is an arithmetic number, because the mean of its divisors is an integer number (62124300).

Almost surely, 2^620452545 is an apocalyptic number.

It is an amenable number.

620452545 is a deficient number, since it is larger than the sum of its proper divisors (373536255).

620452545 is a wasteful number, since it uses less digits than its factorization.

620452545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52704.

The product of its (nonzero) digits is 48000, while the sum is 33.

The square root of 620452545 is about 24908.8848606275. The cubic root of 620452545 is about 852.9093134524.

The spelling of 620452545 in words is "six hundred twenty million, four hundred fifty-two thousand, five hundred forty-five".