61225357 has 2 divisors, whose sum is σ = 61225358. Its totient is φ = 61225356.

The previous prime is 61225331. The next prime is 61225361. The reversal of 61225357 is 75352216.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38700841 + 22524516 = 6221^2 + 4746^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61225357 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61225387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30612678 + 30612679.

It is an arithmetic number, because the mean of its divisors is an integer number (30612679).

Almost surely, 2^61225357 is an apocalyptic number.

It is an amenable number.

61225357 is a deficient number, since it is larger than the sum of its proper divisors (1).

61225357 is an equidigital number, since it uses as much as digits as its factorization.

61225357 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12600, while the sum is 31.

The square root of 61225357 is about 7824.6633793410. The cubic root of 61225357 is about 394.1338860610.

The spelling of 61225357 in words is "sixty-one million, two hundred twenty-five thousand, three hundred fifty-seven".