612625545 has 64 divisors (see below), whose sum is σ = 1255933440. Its totient is φ = 277530624.

The previous prime is 612625543. The next prime is 612625553. The reversal of 612625545 is 545526216.

It is not a de Polignac number, because 612625545 - 2¹ = 612625543 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (612625543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 103917 + ... + 109653.

It is an arithmetic number, because the mean of its divisors is an integer number (19623960).

Almost surely, 2^612625545 is an apocalyptic number.

It is an amenable number.

612625545 is an abundant number, since it is smaller than the sum of its proper divisors (643307895).

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

612625545 is a wasteful number, since it uses less digits than its factorization.

612625545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5871 (or 5865 counting only the distinct ones).

The product of its digits is 72000, while the sum is 36.

The square root of 612625545 is about 24751.2736035946. The cubic root of 612625545 is about 849.3076461266.

The spelling of 612625545 in words is "six hundred twelve million, six hundred twenty-five thousand, five hundred forty-five".