61562477 has 2 divisors, whose sum is σ = 61562478. Its totient is φ = 61562476.

The previous prime is 61562461. The next prime is 61562503. The reversal of 61562477 is 77426516.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 48846121 + 12716356 = 6989^2 + 3566^2 .

It is a cyclic number.

It is not a de Polignac number, because 61562477 - 2⁴ = 61562461 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 61562477.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61562077) 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 as a sum of consecutive naturals, namely, 30781238 + 30781239.

It is an arithmetic number, because the mean of its divisors is an integer number (30781239).

Almost surely, 2^61562477 is an apocalyptic number.

It is an amenable number.

61562477 is a deficient number, since it is larger than the sum of its proper divisors (1).

61562477 is an equidigital number, since it uses as much as digits as its factorization.

61562477 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 70560, while the sum is 38.

The square root of 61562477 is about 7846.1759475556. The cubic root of 61562477 is about 394.8559577341.

The spelling of 61562477 in words is "sixty-one million, five hundred sixty-two thousand, four hundred seventy-seven".