545212620 has 60 divisors (see below), whose sum is σ = 1710357264. Its totient is φ = 145389600.

The previous prime is 545212601. The next prime is 545212639. The reversal of 545212620 is 26212545.

It is an interprime number because it is at equal distance from previous prime (545212601) and next prime (545212639).

It is a tau number, because it is divible by the number of its divisors (60).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 166656 + ... + 169895.

Almost surely, 2^545212620 is an apocalyptic number.

It is an amenable number.

545212620 is an abundant number, since it is smaller than the sum of its proper divisors (1165144644).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

545212620 is a wasteful number, since it uses less digits than its factorization.

545212620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 336572 (or 336561 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 545212620 is about 23349.7884358724. The cubic root of 545212620 is about 816.9371262104.

The spelling of 545212620 in words is "five hundred forty-five million, two hundred twelve thousand, six hundred twenty".