61051055 has 8 divisors (see below), whose sum is σ = 78896832. Its totient is φ = 45083808.

The previous prime is 61051051. The next prime is 61051069. The reversal of 61051055 is 55015016.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 61051055 - 2² = 61051051 is a prime.

It is a super-2 number, since 2×61051055² = 7454462633226050, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 61051055.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61051051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 469559 + ... + 469688.

It is an arithmetic number, because the mean of its divisors is an integer number (9862104).

Almost surely, 2^61051055 is an apocalyptic number.

61051055 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

61051055 is a deficient number, since it is larger than the sum of its proper divisors (17845777).

61051055 is a wasteful number, since it uses less digits than its factorization.

61051055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 939265.

The product of its (nonzero) digits is 750, while the sum is 23.

The square root of 61051055 is about 7813.5174537464. The cubic root of 61051055 is about 393.7595116540.

The spelling of 61051055 in words is "sixty-one million, fifty-one thousand, fifty-five".