611651425 has 24 divisors (see below), whose sum is σ = 945600192. Its totient is φ = 381288000.

The previous prime is 611651423. The next prime is 611651437. The reversal of 611651425 is 524156116.

It is not a de Polignac number, because 611651425 - 2¹ = 611651423 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (611651423) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 156946 + ... + 160795.

It is an arithmetic number, because the mean of its divisors is an integer number (39400008).

Almost surely, 2^611651425 is an apocalyptic number.

It is an amenable number.

611651425 is a deficient number, since it is larger than the sum of its proper divisors (333948767).

611651425 is a wasteful number, since it uses less digits than its factorization.

611651425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317769 (or 317764 counting only the distinct ones).

The product of its digits is 7200, while the sum is 31.

The square root of 611651425 is about 24731.5875956235. The cubic root of 611651425 is about 848.8572532981.

The spelling of 611651425 in words is "six hundred eleven million, six hundred fifty-one thousand, four hundred twenty-five".