61562051 has 2 divisors, whose sum is σ = 61562052. Its totient is φ = 61562050.

The previous prime is 61562047. The next prime is 61562077. The reversal of 61562051 is 15026516.

It is an a-pointer prime, because the next prime (61562077) can be obtained adding 61562051 to its sum of digits (26).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 61562051 - 2² = 61562047 is a prime.

It is a super-2 number, since 2×61562051² = 7579772246653202, which contains 22 as substring.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 61562051.

It is not a weakly prime, because it can be changed into another prime (61562021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30781025 + 30781026.

It is an arithmetic number, because the mean of its divisors is an integer number (30781026).

Almost surely, 2^61562051 is an apocalyptic number.

61562051 is a deficient number, since it is larger than the sum of its proper divisors (1).

61562051 is an equidigital number, since it uses as much as digits as its factorization.

61562051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 61562051 is about 7846.1488005263. The cubic root of 61562051 is about 394.8550469573.

Adding to 61562051 its reverse (15026516), we get a palindrome (76588567).

The spelling of 61562051 in words is "sixty-one million, five hundred sixty-two thousand, fifty-one".