61072055 has 8 divisors (see below), whose sum is σ = 79948944. Its totient is φ = 44416000.

The previous prime is 61072043. The next prime is 61072079. The reversal of 61072055 is 55027016.

61072055 is nontrivially palindromic in base 15.

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

It is not a de Polignac number, because 61072055 - 2¹⁴ = 61055671 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 555146 + ... + 555255.

It is an arithmetic number, because the mean of its divisors is an integer number (9993618).

Almost surely, 2^61072055 is an apocalyptic number.

61072055 is a deficient number, since it is larger than the sum of its proper divisors (18876889).

61072055 is a wasteful number, since it uses less digits than its factorization.

61072055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1110417.

The product of its (nonzero) digits is 2100, while the sum is 26.

The square root of 61072055 is about 7814.8611631941. The cubic root of 61072055 is about 393.8046542090.

The spelling of 61072055 in words is "sixty-one million, seventy-two thousand, fifty-five".