1252061655 has 32 divisors (see below), whose sum is σ = 2171193024. Its totient is φ = 612458496.

The previous prime is 1252061653. The next prime is 1252061687. The reversal of 1252061655 is 5561602521.

1252061655 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1252061655 - 2¹ = 1252061653 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1252061653) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10167 + ... + 51063.

It is an arithmetic number, because the mean of its divisors is an integer number (67849782).

Almost surely, 2^1252061655 is an apocalyptic number.

1252061655 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1252061655 is a deficient number, since it is larger than the sum of its proper divisors (919131369).

1252061655 is a wasteful number, since it uses less digits than its factorization.

1252061655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41075.

The product of its (nonzero) digits is 18000, while the sum is 33.

The square root of 1252061655 is about 35384.4832518436. The cubic root of 1252061655 is about 1077.8092465294.

The spelling of 1252061655 in words is "one billion, two hundred fifty-two million, sixty-one thousand, six hundred fifty-five".