612506481 has 16 divisors (see below), whose sum is σ = 865525824. Its totient is φ = 383957504.

The previous prime is 612506471. The next prime is 612506501. The reversal of 612506481 is 184605216.

It is a cyclic number.

It is not a de Polignac number, because 612506481 - 2⁶ = 612506417 is a prime.

It is a super-2 number, since 2×612506481² = 750328378534006722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (612506431) 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, 55810 + ... + 65876.

It is an arithmetic number, because the mean of its divisors is an integer number (54095364).

Almost surely, 2^612506481 is an apocalyptic number.

It is an amenable number.

612506481 is a deficient number, since it is larger than the sum of its proper divisors (253019343).

612506481 is a wasteful number, since it uses less digits than its factorization.

612506481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11280.

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 612506481 is about 24748.8682771556. The cubic root of 612506481 is about 849.2526214773.

The spelling of 612506481 in words is "six hundred twelve million, five hundred six thousand, four hundred eighty-one".