561652465 has 16 divisors (see below), whose sum is σ = 737398080. Its totient is φ = 407283520.

The previous prime is 561652463. The next prime is 561652471. The reversal of 561652465 is 564256165.

It is not a de Polignac number, because 561652465 - 2¹ = 561652463 is a prime.

It is not an unprimeable number, because it can be changed into a prime (561652463) 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, 4371 + ... + 33799.

It is an arithmetic number, because the mean of its divisors is an integer number (46087380).

Almost surely, 2^561652465 is an apocalyptic number.

561652465 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

561652465 is a deficient number, since it is larger than the sum of its proper divisors (175745615).

561652465 is a wasteful number, since it uses less digits than its factorization.

561652465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29792.

The product of its digits is 216000, while the sum is 40.

The square root of 561652465 is about 23699.2081091331. The cubic root of 561652465 is about 825.0670113918.

It can be divided in two parts, 5616 and 52465, that added together give a square (58081 = 241²).

The spelling of 561652465 in words is "five hundred sixty-one million, six hundred fifty-two thousand, four hundred sixty-five".