61555053 has 8 divisors (see below), whose sum is σ = 93798208. Its totient is φ = 35174304.

The previous prime is 61555051. The next prime is 61555073. The reversal of 61555053 is 35055516.

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

It is not a de Polignac number, because 61555053 - 2¹ = 61555051 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 61555053.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61555051) 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, 1465576 + ... + 1465617.

It is an arithmetic number, because the mean of its divisors is an integer number (11724776).

Almost surely, 2^61555053 is an apocalyptic number.

It is an amenable number.

61555053 is a deficient number, since it is larger than the sum of its proper divisors (32243155).

61555053 is a wasteful number, since it uses less digits than its factorization.

61555053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2931203.

The product of its (nonzero) digits is 11250, while the sum is 30.

The square root of 61555053 is about 7845.7028365851. The cubic root of 61555053 is about 394.8400848160.

The spelling of 61555053 in words is "sixty-one million, five hundred fifty-five thousand, fifty-three".