490625651 has 4 divisors (see below), whose sum is σ = 498941400. Its totient is φ = 482309904.

The previous prime is 490625647. The next prime is 490625669. The reversal of 490625651 is 156526094.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 490625651 - 2² = 490625647 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (490625671) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4157786 + ... + 4157903.

It is an arithmetic number, because the mean of its divisors is an integer number (124735350).

Almost surely, 2^490625651 is an apocalyptic number.

490625651 is a deficient number, since it is larger than the sum of its proper divisors (8315749).

490625651 is an equidigital number, since it uses as much as digits as its factorization.

490625651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8315748.

The product of its (nonzero) digits is 64800, while the sum is 38.

The square root of 490625651 is about 22150.0711285540. The cubic root of 490625651 is about 788.7089155592.

The spelling of 490625651 in words is "four hundred ninety million, six hundred twenty-five thousand, six hundred fifty-one".