461072551 has 4 divisors (see below), whose sum is σ = 468887400. Its totient is φ = 453257704.

The previous prime is 461072539. The next prime is 461072569. The reversal of 461072551 is 155270164.

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 461072551 - 2¹¹ = 461070503 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (461072501) 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, 3907336 + ... + 3907453.

It is an arithmetic number, because the mean of its divisors is an integer number (117221850).

Almost surely, 2^461072551 is an apocalyptic number.

461072551 is a deficient number, since it is larger than the sum of its proper divisors (7814849).

461072551 is an equidigital number, since it uses as much as digits as its factorization.

461072551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7814848.

The product of its (nonzero) digits is 8400, while the sum is 31.

The square root of 461072551 is about 21472.6000055885. The cubic root of 461072551 is about 772.5437607130.

The spelling of 461072551 in words is "four hundred sixty-one million, seventy-two thousand, five hundred fifty-one".