655007451 has 12 divisors (see below), whose sum is σ = 1015930152. Its totient is φ = 374289888.

The previous prime is 655007449. The next prime is 655007461. The reversal of 655007451 is 154700556.

It is not a de Polignac number, because 655007451 - 2¹ = 655007449 is a prime.

It is not an unprimeable number, because it can be changed into a prime (655007461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2227770 + ... + 2228063.

It is an arithmetic number, because the mean of its divisors is an integer number (84660846).

Almost surely, 2^655007451 is an apocalyptic number.

655007451 is a deficient number, since it is larger than the sum of its proper divisors (360922701).

655007451 is a wasteful number, since it uses less digits than its factorization.

655007451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4455850 (or 4455843 counting only the distinct ones).

The product of its (nonzero) digits is 21000, while the sum is 33.

The square root of 655007451 is about 25593.1133510560. The cubic root of 655007451 is about 868.4578533152.

The spelling of 655007451 in words is "six hundred fifty-five million, seven thousand, four hundred fifty-one".