1553611260 has 96 divisors (see below), whose sum is σ = 4451775552. Its totient is φ = 404684800.

The previous prime is 1553611253. The next prime is 1553611271. The reversal of 1553611260 is 621163551.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 816310 + ... + 818210.

It is an arithmetic number, because the mean of its divisors is an integer number (46372662).

Almost surely, 2^1553611260 is an apocalyptic number.

1553611260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1553611260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2225887776).

1553611260 is an abundant number, since it is smaller than the sum of its proper divisors (2898164292).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1553611260 is a wasteful number, since it uses less digits than its factorization.

1553611260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2223 (or 2221 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 30.

The square root of 1553611260 is about 39415.8757355460. The cubic root of 1553611260 is about 1158.1926025164.

It can be divided in two parts, 15536 and 11260, that added together give a triangular number (26796 = T₂₃₁).

The spelling of 1553611260 in words is "one billion, five hundred fifty-three million, six hundred eleven thousand, two hundred sixty".