61355051 has 2 divisors, whose sum is σ = 61355052. Its totient is φ = 61355050.

The previous prime is 61355003. The next prime is 61355117. The reversal of 61355051 is 15055316.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61355051 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 61355051.

It is not a weakly prime, because it can be changed into another prime (61355951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30677525 + 30677526.

It is an arithmetic number, because the mean of its divisors is an integer number (30677526).

Almost surely, 2^61355051 is an apocalyptic number.

61355051 is a deficient number, since it is larger than the sum of its proper divisors (1).

61355051 is an equidigital number, since it uses as much as digits as its factorization.

61355051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2250, while the sum is 26.

The square root of 61355051 is about 7832.9465081794. The cubic root of 61355051 is about 394.4119884218.

The spelling of 61355051 in words is "sixty-one million, three hundred fifty-five thousand, fifty-one".